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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01QVXNGxRUzhHZGj2ZgATmcK","type":"tool_result","content":"## Latest page snapshot\nuid=114_0 RootWebArea \"World population - Wikipedia\" url=\"https://en.wikipedia.org/wiki/World_population\"\n  uid=114_1 generic live=\"polite\" relevant=\"additions text\"\n  uid=114_2 link \"Jump to content\" url=\"https://en.wikipedia.org/wiki/World_population#bodyContent\"\n    uid=114_3 StaticText \"Jump to content\"\n  uid=114_4 banner\n    uid=114_5 navigation \"Site\"\n      uid=114_6 button \"Main menu\" haspopup=\"menu\"\n    uid=114_7 link \"Wikipedia The Free Encyclopedia\" url=\"https://en.wikipedia.org/wiki/Main_Page\"\n      uid=114_8 image \"Wikipedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg\"\n      uid=114_9 image \"The Free Encyclopedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-tagline-en-25.svg\"\n    uid=114_10 search\n      uid=114_11 searchbox \"Search Wikipedia\" description=\"Search Wikipedia [ctrl-option-f]\" keyshortcuts=\"Ctrl+Alt+f\"\n      uid=114_12 button \"Search\"\n    uid=114_13 navigation \"Personal tools\"\n      uid=114_14 link \"Donate\" url=\"https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=en.wikipedia.org&uselang=en\"\n        uid=114_15 StaticText \"Donate\"\n      uid=114_16 link \"Create account\" description=\"You are encouraged to create an account and log in; however, it is not mandatory\" url=\"https://en.wikipedia.org/w/index.php?title=Special:CreateAccount&returnto=World+population\"\n        uid=114_17 StaticText \"Create account\"\n      uid=114_18 link \"Log in\" description=\"You're encouraged to log in; however, it's not mandatory. [ctrl-option-o]\" keyshortcuts=\"Ctrl+Alt+o\" url=\"https://en.wikipedia.org/w/index.php?title=Special:UserLogin&returnto=World+population\"\n        uid=114_19 StaticText \"Log in\"\n  uid=114_20 navigation \"Contents\"\n    uid=114_21 heading \"Contents\" level=\"2\"\n    uid=114_22 button \"hide\"\n    uid=114_23 link \"(Top)\" url=\"https://en.wikipedia.org/wiki/World_population#\"\n      uid=114_24 StaticText \"(Top)\"\n    uid=114_25 link \"History\" url=\"https://en.wikipedia.org/wiki/World_population#History\"\n      uid=114_26 StaticText \"History\"\n    uid=114_27 button \"Toggle History subsection\" expandable\n    uid=114_28 link \"Global demographics\" url=\"https://en.wikipedia.org/wiki/World_population#Global_demographics\"\n      uid=114_29 StaticText \"Global demographics\"\n    uid=114_30 link \"Population by region\" url=\"https://en.wikipedia.org/wiki/World_population#Population_by_region\"\n      uid=114_31 StaticText \"Population by region\"\n    uid=114_32 link \"Largest populations by country\" url=\"https://en.wikipedia.org/wiki/World_population#Largest_populations_by_country\"\n      uid=114_33 StaticText \"Largest populations by country\"\n    uid=114_34 button \"Toggle Largest populations by country subsection\" expandable\n    uid=114_35 link \"Fluctuation\" url=\"https://en.wikipedia.org/wiki/World_population#Fluctuation\"\n      uid=114_36 StaticText \"Fluctuation\"\n    uid=114_37 button \"Toggle Fluctuation subsection\" expandable\n    uid=114_38 link \"Mathematical approximations\" url=\"https://en.wikipedia.org/wiki/World_population#Mathematical_approximations\"\n      uid=114_39 StaticText \"Mathematical approximations\"\n    uid=114_40 button \"Toggle Mathematical approximations subsection\" expandable\n    uid=114_41 link \"Number of humans who have ever lived\" url=\"https://en.wikipedia.org/wiki/World_population#Number_of_humans_who_have_ever_lived\"\n      uid=114_42 StaticText \"Number of humans who have ever lived\"\n    uid=114_43 link \"Human population as a function of food availability\" url=\"https://en.wikipedia.org/wiki/World_population#Human_population_as_a_function_of_food_availability\"\n      uid=114_44 StaticText \"Human population as a function of food availability\"\n    uid=114_45 link \"See also\" url=\"https://en.wikipedia.org/wiki/World_population#See_also\"\n      uid=114_46 StaticText \"See also\"\n    uid=114_47 link \"Explanatory notes\" url=\"https://en.wikipedia.org/wiki/World_population#Explanatory_notes\"\n      uid=114_48 StaticText \"Explanatory notes\"\n    uid=114_49 link \"Sources\" url=\"https://en.wikipedia.org/wiki/World_population#Sources\"\n      uid=114_50 StaticText \"Sources\"\n    uid=114_51 link \"References\" url=\"https://en.wikipedia.org/wiki/World_population#References\"\n      uid=114_52 StaticText \"References\"\n    uid=114_53 button \"Toggle References subsection\" expandable\n    uid=114_54 link \"Further reading\" url=\"https://en.wikipedia.org/wiki/World_population#Further_reading\"\n      uid=114_55 StaticText \"Further reading\"\n    uid=114_56 link \"External links\" url=\"https://en.wikipedia.org/wiki/World_population#External_links\"\n      uid=114_57 StaticText \"External links\"\n  uid=114_58 main\n    uid=114_59 heading \"World population\" level=\"1\"\n    uid=114_60 button \"Go to an article in another language. Available in 75 languages\" haspopup=\"menu\"\n    uid=114_61 navigation \"Namespaces\"\n      uid=114_62 link \"Article\" description=\"View the content page [ctrl-option-c]\" keyshortcuts=\"Ctrl+Alt+c\" url=\"https://en.wikipedia.org/wiki/World_population\"\n        uid=114_63 StaticText \"Article\"\n      uid=114_64 link \"Talk\" description=\"Discuss improvements to the content page [ctrl-option-t]\" keyshortcuts=\"Ctrl+Alt+t\" url=\"https://en.wikipedia.org/wiki/Talk:World_population\"\n        uid=114_65 StaticText \"Talk\"\n    uid=114_66 navigation \"Views\"\n      uid=114_67 link \"Read\" url=\"https://en.wikipedia.org/wiki/World_population\"\n        uid=114_68 StaticText \"Read\"\n      uid=114_69 link \"View source\" description=\"This page is protected. You can view its source [ctrl-option-e]\" keyshortcuts=\"Ctrl+Alt+e\" url=\"https://en.wikipedia.org/w/index.php?title=World_population&action=edit\"\n        uid=114_70 StaticText \"View source\"\n      uid=114_71 link \"View history\" description=\"Past revisions of this page [ctrl-option-h]\" keyshortcuts=\"Ctrl+Alt+h\" url=\"https://en.wikipedia.org/w/index.php?title=World_population&action=history\"\n        uid=114_72 StaticText \"View history\"\n    uid=114_73 navigation \"Page tools\"\n      uid=114_74 button \"Tools\" haspopup=\"menu\"\n    uid=114_75 navigation \"Appearance\"\n      uid=114_76 StaticText \"Appearance\"\n      uid=114_77 button \"hide\"\n      uid=114_78 StaticText \"Birthday mode (Baby Globe)\"\n      uid=114_79 radio \"Disabled\"\n      uid=114_80 StaticText \"Disabled\"\n      uid=114_81 radio \"Enabled\" checked\n      uid=114_82 StaticText \"Enabled\"\n      uid=114_83 link \"Learn more about Birthday mode\" url=\"https://wikimediafoundation.org/wikipedia25/wikipedia-mascot/?utm_campaign=wpam&utm_source=wpam&utm_medium=wpamen\"\n        uid=114_84 StaticText \"Learn more about Birthday mode\"\n      uid=114_85 StaticText \"Text\"\n      uid=114_86 radio \"Small\"\n      uid=114_87 StaticText \"Small\"\n      uid=114_88 radio \"Standard\" checked\n      uid=114_89 StaticText \"Standard\"\n      uid=114_90 radio \"Large\"\n      uid=114_91 StaticText \"Large\"\n      uid=114_92 StaticText \"Width\"\n      uid=114_93 radio \"Standard\" checked\n      uid=114_94 StaticText \"Standard\"\n      uid=114_95 radio \"Wide\"\n      uid=114_96 StaticText \"Wide\"\n      uid=114_97 StaticText \"Color \"\n      uid=114_98 StaticText \"(beta)\"\n      uid=114_99 radio \"Automatic\"\n      uid=114_100 StaticText \"Automatic\"\n      uid=114_101 radio \"Light\" checked\n      uid=114_102 StaticText \"Light\"\n      uid=114_103 radio \"Dark\"\n      uid=114_104 StaticText \"Dark\"\n    uid=114_105 link \"Page semi-protected\" description=\"This article is semi-protected due to vandalism\" url=\"https://en.wikipedia.org/wiki/Wikipedia:Protection_policy#semi\"\n      uid=114_106 image \"Page semi-protected\" url=\"https://upload.wikimedia.org/wikipedia/en/thumb/1/1b/Semi-protection-shackle.svg/20px-Semi-protection-shackle.svg.png\"\n    uid=114_107 StaticText \"From Wikipedia, the free encyclopedia\"\n    uid=114_108 link url=\"https://en.wikipedia.org/wiki/File:World_Population_Prospects.svg\"\n    uid=114_109 StaticText \"High, medium, and low projections of the future human world population\"\n    uid=114_110 link \"[1]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:4-1\"\n      uid=114_111 StaticText \"[\"\n      uid=114_112 StaticText \"1\"\n      uid=114_113 StaticText \"]\"\n    uid=114_114 StaticText \"In \"\n    uid=114_115 link \"world demographics\" description=\"Demographics of the world\" url=\"https://en.wikipedia.org/wiki/Demographics_of_the_world\"\n      uid=114_116 StaticText \"world demographics\"\n    uid=114_117 StaticText \", the \"\n    uid=114_118 StaticText \"world population\"\n    uid=114_119 StaticText \" is the total number of humans currently alive. It was estimated by the \"\n    uid=114_120 link \"United Nations\" url=\"https://en.wikipedia.org/wiki/United_Nations\"\n      uid=114_121 StaticText \"United Nations\"\n    uid=114_122 StaticText \" to have \"\n    uid=114_123 link \"exceeded 8 billion\" description=\"Day of Eight Billion\" url=\"https://en.wikipedia.org/wiki/Day_of_Eight_Billion\"\n      uid=114_124 StaticText \"exceeded 8 billion\"\n    uid=114_125 StaticText \" (8,000,000,000) on November 15, 2022. It took around 300,000 years of human \"\n    uid=114_126 link \"prehistory\" description=\"Prehistory\" url=\"https://en.wikipedia.org/wiki/Prehistory\"\n      uid=114_127 StaticText \"prehistory\"\n    uid=114_128 StaticText \" and \"\n    uid=114_129 link \"history\" description=\"Human history\" url=\"https://en.wikipedia.org/wiki/Human_history\"\n      uid=114_130 StaticText \"history\"\n    uid=114_131 StaticText \" for the human population to reach a billion and only 218 more years from there to reach 8 billion. As of 2026, the world population is approximately 8.3 billion.\"\n    uid=114_132 link \"[2]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:5-2\"\n      uid=114_133 StaticText \"[\"\n      uid=114_134 StaticText \"2\"\n      uid=114_135 StaticText \"]\"\n    uid=114_136 StaticText \"The human population experienced \"\n    uid=114_137 link \"continuous growth\" description=\"Population growth\" url=\"https://en.wikipedia.org/wiki/Population_growth\"\n      uid=114_138 StaticText \"continuous growth\"\n    uid=114_139 StaticText \" following the \"\n    uid=114_140 link \"Great Famine of 1315–1317\" url=\"https://en.wikipedia.org/wiki/Great_Famine_of_1315%E2%80%931317\"\n      uid=114_141 StaticText \"Great Famine of 1315–1317\"\n    uid=114_142 StaticText \" and the end of the \"\n    uid=114_143 link \"Black Death\" url=\"https://en.wikipedia.org/wiki/Black_Death\"\n      uid=114_144 StaticText \"Black Death\"\n    uid=114_145 StaticText \" in 1350, when it had reached nearly 370 million.\"\n    uid=114_146 link \"[3]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-3\"\n      uid=114_147 StaticText \"[\"\n      uid=114_148 StaticText \"3\"\n      uid=114_149 StaticText \"]\"\n    uid=114_150 StaticText \" The highest global \"\n    uid=114_151 link \"population growth rates\" description=\"List of countries by population growth rate\" url=\"https://en.wikipedia.org/wiki/List_of_countries_by_population_growth_rate\"\n      uid=114_152 StaticText \"population growth rates\"\n    uid=114_153 StaticText \", with increases of over 1.8% per year, occurred between 1955 and 1975, peaking at 2.1% between 1965 and 1970.\"\n    uid=114_154 link \"[4]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:1-4\"\n      uid=114_155 StaticText \"[\"\n      uid=114_156 StaticText \"4\"\n      uid=114_157 StaticText \"]\"\n    uid=114_158 StaticText \" The growth rate declined to 1.1% between 2015 and 2020 and is projected to decline further in the 21st century.\"\n    uid=114_159 link \"[5]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:8-5\"\n      uid=114_160 StaticText \"[\"\n      uid=114_161 StaticText \"5\"\n      uid=114_162 StaticText \"]\"\n    uid=114_163 StaticText \" The global population is still increasing, but there is significant uncertainty about its long-term trajectory due to changing \"\n    uid=114_164 link \"fertility\" description=\"Total fertility rate\" url=\"https://en.wikipedia.org/wiki/Total_fertility_rate\"\n      uid=114_165 StaticText \"fertility\"\n    uid=114_166 StaticText \" and \"\n    uid=114_167 link \"mortality\" description=\"Mortality rate\" url=\"https://en.wikipedia.org/wiki/Mortality_rate\"\n      uid=114_168 StaticText \"mortality\"\n    uid=114_169 StaticText \" rates.\"\n    uid=114_170 link \"[6]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-6\"\n      uid=114_171 StaticText \"[\"\n      uid=114_172 StaticText \"6\"\n      uid=114_173 StaticText \"]\"\n    uid=114_174 StaticText \" The \"\n    uid=114_175 link \"UN Department of Economics and Social Affairs (UNDESA)\" description=\"United Nations Department of Economic and Social Affairs\" url=\"https://en.wikipedia.org/wiki/United_Nations_Department_of_Economic_and_Social_Affairs\"\n      uid=114_176 StaticText \"UN Department of Economics and Social Affairs (UNDESA)\"\n    uid=114_177 StaticText \" has projected the world population to reach between 9 and 10 billion people by 2050, providing an 80% \"\n    uid=114_178 link \"confidence interval\" description=\"Confidence interval\" url=\"https://en.wikipedia.org/wiki/Confidence_interval\"\n      uid=114_179 StaticText \"confidence interval\"\n    uid=114_180 StaticText \" of 10–12 billion by the end of the 21st century,\"\n    uid=114_181 link \"[1]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:4-1\"\n      uid=114_182 StaticText \"[\"\n      uid=114_183 StaticText \"1\"\n      uid=114_184 StaticText \"]\"\n    uid=114_185 StaticText \" with a growth rate by then of zero. However, other \"\n    uid=114_186 link \"demographers\" description=\"Demography\" url=\"https://en.wikipedia.org/wiki/Demography\"\n      uid=114_187 StaticText \"demographers\"\n    uid=114_188 StaticText \" predict that the human population may begin to decline in the second half of the 21st century if global fertility rates continue to fall.\"\n    uid=114_189 link \"[7]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-7\"\n      uid=114_190 StaticText \"[\"\n      uid=114_191 StaticText \"7\"\n      uid=114_192 StaticText \"]\"\n    uid=114_193 StaticText \"The total number of births globally, as of 2024, is approximately 132 million/year, which is projected to peak during the period 2040–2045 at 141 million/year and then decline slowly to 126 million/year by 2100.\"\n    uid=114_194 link \"[8]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-8\"\n      uid=114_195 StaticText \"[\"\n      uid=114_196 StaticText \"8\"\n      uid=114_197 StaticText \"]\"\n    uid=114_198 StaticText \" The total number of deaths is currently 63 million/year and is projected to grow steadily to 122 million/year by 2100.\"\n    uid=114_199 link \"[9]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-9\"\n      uid=114_200 StaticText \"[\"\n      uid=114_201 StaticText \"9\"\n      uid=114_202 StaticText \"]\"\n    uid=114_203 StaticText \"The \"\n    uid=114_204 link \"global median age\" description=\"Population pyramid\" url=\"https://en.wikipedia.org/wiki/Population_pyramid\"\n      uid=114_205 StaticText \"global median age\"\n    uid=114_206 StaticText \" of human beings, as of 2026, is 31.1 years.\"\n    uid=114_207 link \"[10]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:0-10\"\n      uid=114_208 StaticText \"[\"\n      uid=114_209 StaticText \"10\"\n      uid=114_210 StaticText \"]\"\n    uid=114_211 link \"[2]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:5-2\"\n      uid=114_212 StaticText \"[\"\n      uid=114_213 StaticText \"2\"\n      uid=114_214 StaticText \"]\"\n    uid=114_215 heading \"History\" level=\"2\"\n    uid=114_216 StaticText \"Further information: \"\n    uid=114_217 link \"Estimates of historical world population\" url=\"https://en.wikipedia.org/wiki/Estimates_of_historical_world_population\"\n      uid=114_218 StaticText \"Estimates of historical world population\"\n    uid=114_219 StaticText \" and \"\n    uid=114_220 link \"Human history\" url=\"https://en.wikipedia.org/wiki/Human_history\"\n      uid=114_221 StaticText \"Human history\"\n    uid=114_222 link url=\"https://en.wikipedia.org/wiki/File:Illustration_of_contemporary_and_past_human_populations_Our_World_in_Data.png\"\n    uid=114_223 StaticText \"Visual comparison of the world population in past and present\"\n    uid=114_224 StaticText \"Estimates of world population by their nature are an aspect of \"\n    uid=114_225 link \"modernity\" description=\"Modernity\" url=\"https://en.wikipedia.org/wiki/Modernity\"\n      uid=114_226 StaticText \"modernity\"\n    uid=114_227 StaticText \", possible only since the \"\n    uid=114_228 link \"Age of Discovery\" url=\"https://en.wikipedia.org/wiki/Age_of_Discovery\"\n      uid=114_229 StaticText \"Age of Discovery\"\n    uid=114_230 StaticText \". Early estimates for the population of the world\"\n    uid=114_231 link \"[11]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-11\"\n      uid=114_232 StaticText \"[\"\n      uid=114_233 StaticText \"11\"\n      uid=114_234 StaticText \"]\"\n    uid=114_235 StaticText \" date to the 17th century: \"\n    uid=114_236 link \"William Petty\" url=\"https://en.wikipedia.org/wiki/William_Petty\"\n      uid=114_237 StaticText \"William Petty\"\n    uid=114_238 StaticText \", in 1682, estimated the world population at 320 million (current estimates ranging close to twice this number); by the late 18th century, estimates ranged close to one billion (consistent with current estimates).\"\n    uid=114_239 link \"[12]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-12\"\n      uid=114_240 StaticText \"[\"\n      uid=114_241 StaticText \"12\"\n      uid=114_242 StaticText \"]\"\n    uid=114_243 StaticText \" More refined estimates, broken down by continents, were published in the first half of the 19th century, at 600 million to 1 billion in the early 1800s and 800 million to 1 billion in the 1840s.\"\n    uid=114_244 link \"[13]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-13\"\n      uid=114_245 StaticText \"[\"\n      uid=114_246 StaticText \"13\"\n      uid=114_247 StaticText \"]\"\n    uid=114_248 StaticText \"It is difficult for estimates to be better than rough approximations, as even current population estimates are fraught with uncertainties from 3% to 5%.\"\n    uid=114_249 link \"[14]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-Kapitza2-14\"\n      uid=114_250 StaticText \"[\"\n      uid=114_251 StaticText \"14\"\n      uid=114_252 StaticText \"]\"\n    uid=114_253 heading \"Prehistoric patterns\" level=\"3\"\n    uid=114_254 StaticText \"The history of the world's population involves a great deal of speculation. Before 9000 BC, virtually all humans were hunter-gatherers living in small bands that usually verged on the edge of extinction. Survival depended on the capture of hunted animals; if supply of animals dwindled for any reason, humans would starve; if the human population grew too large the number of surviving animals would shrink, leading to starvation the next year for the hunters (humans had not yet invented the technique of domesticating and herding animals). The hunting cultures sometimes fished, and usually gathered wild seeds and nuts, but they did not plant or grow vegetables or any other crops. One very rough estimate is 8 million hunters lived circa 9000 BC when the first of several \"\"\n    uid=114_255 link \"agricultural revolutions\" description=\"Neolithic Revolution\" url=\"https://en.wikipedia.org/wiki/Neolithic_Revolution\"\n      uid=114_256 StaticText \"agricultural revolutions\"\n    uid=114_257 StaticText \"\" occurred in the eastern hemisphere (the dates are very conjectural). Around the year 9000 BC in the Middle East, for reasons unknown, some groups began to domesticate and graze sheep. The practice of cultivating plants was invented independently in three places: in the Middle East and Europe (wheat, 6500–3500 BC), in Southeast Asia (rice, 6800–4000 BC), and in Central America and Peru (corn, about 2500 BC).\"\n    uid=114_258 link \"[15]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-15\"\n      uid=114_259 StaticText \"[\"\n      uid=114_260 StaticText \"15\"\n      uid=114_261 StaticText \"]\"\n    uid=114_262 StaticText \"Agriculture provided a steady food supply that could be stored for a year or longer in order to minimize the risk of famine. Farm production could be expanded by systematic human exertion. The new technology of farming meant that the food supply was proportional to the number of workers who could plant and harvest the crops. Every new pair of hands meant more food for the community, so children were valued in agricultural societies. Later, additional workers found useful work in building irrigation canals and systems that provided a stable water supply for crops, especially in Egypt, Mesopotamia, India, China, Peru and Mexico. The population could now grow because new people paid their own way. (It would take many centuries before the arable land supply became a limiting factor.) However, death rates were high, especially for infants and children, so even with high birth rates growth was slow. The same amount of land could support either 1,000 hunters or 100,000 farmers, and it is easy to see which side ultimately would win a fight for the land. Farmers gathered in permanent villages, and through a process of warfare consolidated into much larger states, including those in China, India, Egypt and Mesopotamia. From 300 to 1400 AD large agricultural states also existed throughout the eastern United States, called the \"\"\n    uid=114_263 link \"Hopewell tradition\" url=\"https://en.wikipedia.org/wiki/Hopewell_tradition\"\n      uid=114_264 StaticText \"Hopewell tradition\"\n    uid=114_265 StaticText \"\" and \"\"\n    uid=114_266 link \"Mississippian cultures\" url=\"https://en.wikipedia.org/wiki/Mississippian_cultures\"\n      uid=114_267 StaticText \"Mississippian cultures\"\n    uid=114_268 StaticText \"\". They are most famous as \"\n    uid=114_269 link \"Mound Builders\" url=\"https://en.wikipedia.org/wiki/Mound_Builders\"\n      uid=114_270 StaticText \"Mound Builders\"\n    uid=114_271 StaticText \", but their culture collapsed (for unknown reasons) by 1500. The natives encountered by the English and French were nomadic hunters who supplemented their meat diet with cultivated vegetables.\"\n    uid=114_272 link \"[16]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-16\"\n      uid=114_273 StaticText \"[\"\n      uid=114_274 StaticText \"16\"\n      uid=114_275 StaticText \"]\"\n    uid=114_276 link \"[17]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-17\"\n      uid=114_277 StaticText \"[\"\n      uid=114_278 StaticText \"17\"\n      uid=114_279 StaticText \"]\"\n    uid=114_280 heading \"Ancient and post-classical history\" level=\"3\"\n    uid=114_281 StaticText \"Main articles: \"\n    uid=114_282 link \"Classical demography\" url=\"https://en.wikipedia.org/wiki/Classical_demography\"\n      uid=114_283 StaticText \"Classical demography\"\n    uid=114_284 StaticText \" and \"\n    uid=114_285 link \"Medieval demography\" url=\"https://en.wikipedia.org/wiki/Medieval_demography\"\n      uid=114_286 StaticText \"Medieval demography\"\n    uid=114_287 link url=\"https://en.wikipedia.org/wiki/File:Population_curve.svg\"\n    uid=114_288 StaticText \"Graph of human population from 10 000 BC to 2000 \"\n    uid=114_289 link \"AD\" description=\"Anno Domini\" url=\"https://en.wikipedia.org/wiki/Anno_Domini\"\n      uid=114_290 StaticText \"AD\"\n    uid=114_291 StaticText \". It shows exponential rise in world population that has taken place since the end of the seventeenth century.\"\n    uid=114_292 StaticText \"Estimates of the population of the world at the time agriculture emerged in around 10,000 BC have ranged between 1 million and 15 million.\"\n    uid=114_293 link \"[18]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-18\"\n      uid=114_294 StaticText \"[\"\n      uid=114_295 StaticText \"18\"\n      uid=114_296 StaticText \"]\"\n    uid=114_297 link \"[19]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-19\"\n      uid=114_298 StaticText \"[\"","is_error":false}]},"parent_tool_use_id":null,"session_id":"9fb5ea02-5c1b-459e-a2e4-ee4d8e47de89","uuid":"736e6621-4ce4-40e8-b366-62b88e4374fd","timestamp":"2026-04-07T20:03:20.550Z","tool_use_result":{"stdout":"## Latest page snapshot\nuid=114_0 RootWebArea \"World population - Wikipedia\" url=\"https://en.wikipedia.org/wiki/World_population\"\n  uid=114_1 generic live=\"polite\" relevant=\"additions text\"\n  uid=114_2 link \"Jump to content\" url=\"https://en.wikipedia.org/wiki/World_population#bodyContent\"\n    uid=114_3 StaticText \"Jump to content\"\n  uid=114_4 banner\n    uid=114_5 navigation \"Site\"\n      uid=114_6 button \"Main menu\" haspopup=\"menu\"\n    uid=114_7 link \"Wikipedia The Free Encyclopedia\" url=\"https://en.wikipedia.org/wiki/Main_Page\"\n      uid=114_8 image \"Wikipedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg\"\n      uid=114_9 image \"The Free Encyclopedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-tagline-en-25.svg\"\n    uid=114_10 search\n      uid=114_11 searchbox \"Search Wikipedia\" description=\"Search Wikipedia [ctrl-option-f]\" keyshortcuts=\"Ctrl+Alt+f\"\n      uid=114_12 button \"Search\"\n    uid=114_13 navigation \"Personal tools\"\n      uid=114_14 link \"Donate\" url=\"https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=en.wikipedia.org&uselang=en\"\n        uid=114_15 StaticText \"Donate\"\n      uid=114_16 link \"Create account\" description=\"You are encouraged to create an account and log in; however, it is not mandatory\" url=\"https://en.wikipedia.org/w/index.php?title=Special:CreateAccount&returnto=World+population\"\n        uid=114_17 StaticText \"Create account\"\n      uid=114_18 link \"Log in\" description=\"You're encouraged to log in; however, it's not mandatory. [ctrl-option-o]\" keyshortcuts=\"Ctrl+Alt+o\" url=\"https://en.wikipedia.org/w/index.php?title=Special:UserLogin&returnto=World+population\"\n        uid=114_19 StaticText \"Log in\"\n  uid=114_20 navigation \"Contents\"\n    uid=114_21 heading \"Contents\" level=\"2\"\n    uid=114_22 button \"hide\"\n    uid=114_23 link \"(Top)\" url=\"https://en.wikipedia.org/wiki/World_population#\"\n      uid=114_24 StaticText \"(Top)\"\n    uid=114_25 link \"History\" url=\"https://en.wikipedia.org/wiki/World_population#History\"\n      uid=114_26 StaticText \"History\"\n    uid=114_27 button \"Toggle History subsection\" expandable\n    uid=114_28 link \"Global demographics\" url=\"https://en.wikipedia.org/wiki/World_population#Global_demographics\"\n      uid=114_29 StaticText \"Global demographics\"\n    uid=114_30 link \"Population by region\" url=\"https://en.wikipedia.org/wiki/World_population#Population_by_region\"\n      uid=114_31 StaticText \"Population by region\"\n    uid=114_32 link \"Largest populations by country\" url=\"https://en.wikipedia.org/wiki/World_population#Largest_populations_by_country\"\n      uid=114_33 StaticText \"Largest populations by country\"\n    uid=114_34 button \"Toggle Largest populations by country subsection\" expandable\n    uid=114_35 link \"Fluctuation\" url=\"https://en.wikipedia.org/wiki/World_population#Fluctuation\"\n      uid=114_36 StaticText \"Fluctuation\"\n    uid=114_37 button \"Toggle Fluctuation subsection\" expandable\n    uid=114_38 link \"Mathematical approximations\" url=\"https://en.wikipedia.org/wiki/World_population#Mathematical_approximations\"\n      uid=114_39 StaticText \"Mathematical approximations\"\n    uid=114_40 button \"Toggle Mathematical approximations subsection\" expandable\n    uid=114_41 link \"Number of humans who have ever lived\" url=\"https://en.wikipedia.org/wiki/World_population#Number_of_humans_who_have_ever_lived\"\n      uid=114_42 StaticText \"Number of humans who have ever lived\"\n    uid=114_43 link \"Human population as a function of food availability\" url=\"https://en.wikipedia.org/wiki/World_population#Human_population_as_a_function_of_food_availability\"\n      uid=114_44 StaticText \"Human population as a function of food availability\"\n    uid=114_45 link \"See also\" url=\"https://en.wikipedia.org/wiki/World_population#See_also\"\n      uid=114_46 StaticText \"See also\"\n    uid=114_47 link \"Explanatory notes\" url=\"https://en.wikipedia.org/wiki/World_population#Explanatory_notes\"\n      uid=114_48 StaticText \"Explanatory notes\"\n    uid=114_49 link \"Sources\" url=\"https://en.wikipedia.org/wiki/World_population#Sources\"\n      uid=114_50 StaticText \"Sources\"\n    uid=114_51 link \"References\" url=\"https://en.wikipedia.org/wiki/World_population#References\"\n      uid=114_52 StaticText \"References\"\n    uid=114_53 button \"Toggle References subsection\" expandable\n    uid=114_54 link \"Further reading\" url=\"https://en.wikipedia.org/wiki/World_population#Further_reading\"\n      uid=114_55 StaticText \"Further reading\"\n    uid=114_56 link \"External links\" url=\"https://en.wikipedia.org/wiki/World_population#External_links\"\n      uid=114_57 StaticText \"External links\"\n  uid=114_58 main\n    uid=114_59 heading \"World population\" level=\"1\"\n    uid=114_60 button \"Go to an article in another language. Available in 75 languages\" haspopup=\"menu\"\n    uid=114_61 navigation \"Namespaces\"\n      uid=114_62 link \"Article\" description=\"View the content page [ctrl-option-c]\" keyshortcuts=\"Ctrl+Alt+c\" url=\"https://en.wikipedia.org/wiki/World_population\"\n        uid=114_63 StaticText \"Article\"\n      uid=114_64 link \"Talk\" description=\"Discuss improvements to the content page [ctrl-option-t]\" keyshortcuts=\"Ctrl+Alt+t\" url=\"https://en.wikipedia.org/wiki/Talk:World_population\"\n        uid=114_65 StaticText \"Talk\"\n    uid=114_66 navigation \"Views\"\n      uid=114_67 link \"Read\" url=\"https://en.wikipedia.org/wiki/World_population\"\n        uid=114_68 StaticText \"Read\"\n      uid=114_69 link \"View source\" description=\"This page is protected. You can view its source [ctrl-option-e]\" keyshortcuts=\"Ctrl+Alt+e\" url=\"https://en.wikipedia.org/w/index.php?title=World_population&action=edit\"\n        uid=114_70 StaticText \"View source\"\n      uid=114_71 link \"View history\" description=\"Past revisions of this page [ctrl-option-h]\" keyshortcuts=\"Ctrl+Alt+h\" url=\"https://en.wikipedia.org/w/index.php?title=World_population&action=history\"\n        uid=114_72 StaticText \"View history\"\n    uid=114_73 navigation \"Page tools\"\n      uid=114_74 button \"Tools\" haspopup=\"menu\"\n    uid=114_75 navigation \"Appearance\"\n      uid=114_76 StaticText \"Appearance\"\n      uid=114_77 button \"hide\"\n      uid=114_78 StaticText \"Birthday mode (Baby Globe)\"\n      uid=114_79 radio \"Disabled\"\n      uid=114_80 StaticText \"Disabled\"\n      uid=114_81 radio \"Enabled\" checked\n      uid=114_82 StaticText \"Enabled\"\n      uid=114_83 link \"Learn more about Birthday mode\" url=\"https://wikimediafoundation.org/wikipedia25/wikipedia-mascot/?utm_campaign=wpam&utm_source=wpam&utm_medium=wpamen\"\n        uid=114_84 StaticText \"Learn more about Birthday mode\"\n      uid=114_85 StaticText \"Text\"\n      uid=114_86 radio \"Small\"\n      uid=114_87 StaticText \"Small\"\n      uid=114_88 radio \"Standard\" checked\n      uid=114_89 StaticText \"Standard\"\n      uid=114_90 radio \"Large\"\n      uid=114_91 StaticText \"Large\"\n      uid=114_92 StaticText \"Width\"\n      uid=114_93 radio \"Standard\" checked\n      uid=114_94 StaticText \"Standard\"\n      uid=114_95 radio \"Wide\"\n      uid=114_96 StaticText \"Wide\"\n      uid=114_97 StaticText \"Color \"\n      uid=114_98 StaticText \"(beta)\"\n      uid=114_99 radio \"Automatic\"\n      uid=114_100 StaticText \"Automatic\"\n      uid=114_101 radio \"Light\" checked\n      uid=114_102 StaticText \"Light\"\n      uid=114_103 radio \"Dark\"\n      uid=114_104 StaticText \"Dark\"\n    uid=114_105 link \"Page semi-protected\" description=\"This article is semi-protected due to vandalism\" url=\"https://en.wikipedia.org/wiki/Wikipedia:Protection_policy#semi\"\n      uid=114_106 image \"Page semi-protected\" url=\"https://upload.wikimedia.org/wikipedia/en/thumb/1/1b/Semi-protection-shackle.svg/20px-Semi-protection-shackle.svg.png\"\n    uid=114_107 StaticText \"From Wikipedia, the free encyclopedia\"\n    uid=114_108 link url=\"https://en.wikipedia.org/wiki/File:World_Population_Prospects.svg\"\n    uid=114_109 StaticText \"High, medium, and low projections of the future human world population\"\n    uid=114_110 link \"[1]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:4-1\"\n      uid=114_111 StaticText \"[\"\n      uid=114_112 StaticText \"1\"\n      uid=114_113 StaticText \"]\"\n    uid=114_114 StaticText \"In \"\n    uid=114_115 link \"world demographics\" description=\"Demographics of the world\" url=\"https://en.wikipedia.org/wiki/Demographics_of_the_world\"\n      uid=114_116 StaticText \"world demographics\"\n    uid=114_117 StaticText \", the \"\n    uid=114_118 StaticText \"world population\"\n    uid=114_119 StaticText \" is the total number of humans currently alive. It was estimated by the \"\n    uid=114_120 link \"United Nations\" url=\"https://en.wikipedia.org/wiki/United_Nations\"\n      uid=114_121 StaticText \"United Nations\"\n    uid=114_122 StaticText \" to have \"\n    uid=114_123 link \"exceeded 8 billion\" description=\"Day of Eight Billion\" url=\"https://en.wikipedia.org/wiki/Day_of_Eight_Billion\"\n      uid=114_124 StaticText \"exceeded 8 billion\"\n    uid=114_125 StaticText \" (8,000,000,000) on November 15, 2022. It took around 300,000 years of human \"\n    uid=114_126 link \"prehistory\" description=\"Prehistory\" url=\"https://en.wikipedia.org/wiki/Prehistory\"\n      uid=114_127 StaticText \"prehistory\"\n    uid=114_128 StaticText \" and \"\n    uid=114_129 link \"history\" description=\"Human history\" url=\"https://en.wikipedia.org/wiki/Human_history\"\n      uid=114_130 StaticText \"history\"\n    uid=114_131 StaticText \" for the human population to reach a billion and only 218 more years from there to reach 8 billion. As of 2026, the world population is approximately 8.3 billion.\"\n    uid=114_132 link \"[2]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:5-2\"\n      uid=114_133 StaticText \"[\"\n      uid=114_134 StaticText \"2\"\n      uid=114_135 StaticText \"]\"\n    uid=114_136 StaticText \"The human population experienced \"\n    uid=114_137 link \"continuous growth\" description=\"Population growth\" url=\"https://en.wikipedia.org/wiki/Population_growth\"\n      uid=114_138 StaticText \"continuous growth\"\n    uid=114_139 StaticText \" following the \"\n    uid=114_140 link \"Great Famine of 1315–1317\" url=\"https://en.wikipedia.org/wiki/Great_Famine_of_1315%E2%80%931317\"\n      uid=114_141 StaticText \"Great Famine of 1315–1317\"\n    uid=114_142 StaticText \" and the end of the \"\n    uid=114_143 link \"Black Death\" url=\"https://en.wikipedia.org/wiki/Black_Death\"\n      uid=114_144 StaticText \"Black Death\"\n    uid=114_145 StaticText \" in 1350, when it had reached nearly 370 million.\"\n    uid=114_146 link \"[3]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-3\"\n      uid=114_147 StaticText \"[\"\n      uid=114_148 StaticText \"3\"\n      uid=114_149 StaticText \"]\"\n    uid=114_150 StaticText \" The highest global \"\n    uid=114_151 link \"population growth rates\" description=\"List of countries by population growth rate\" url=\"https://en.wikipedia.org/wiki/List_of_countries_by_population_growth_rate\"\n      uid=114_152 StaticText \"population growth rates\"\n    uid=114_153 StaticText \", with increases of over 1.8% per year, occurred between 1955 and 1975, peaking at 2.1% between 1965 and 1970.\"\n    uid=114_154 link \"[4]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:1-4\"\n      uid=114_155 StaticText \"[\"\n      uid=114_156 StaticText \"4\"\n      uid=114_157 StaticText \"]\"\n    uid=114_158 StaticText \" The growth rate declined to 1.1% between 2015 and 2020 and is projected to decline further in the 21st century.\"\n    uid=114_159 link \"[5]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:8-5\"\n      uid=114_160 StaticText \"[\"\n      uid=114_161 StaticText \"5\"\n      uid=114_162 StaticText \"]\"\n    uid=114_163 StaticText \" The global population is still increasing, but there is significant uncertainty about its long-term trajectory due to changing \"\n    uid=114_164 link \"fertility\" description=\"Total fertility rate\" url=\"https://en.wikipedia.org/wiki/Total_fertility_rate\"\n      uid=114_165 StaticText \"fertility\"\n    uid=114_166 StaticText \" and \"\n    uid=114_167 link \"mortality\" description=\"Mortality rate\" url=\"https://en.wikipedia.org/wiki/Mortality_rate\"\n      uid=114_168 StaticText \"mortality\"\n    uid=114_169 StaticText \" rates.\"\n    uid=114_170 link \"[6]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-6\"\n      uid=114_171 StaticText \"[\"\n      uid=114_172 StaticText \"6\"\n      uid=114_173 StaticText \"]\"\n    uid=114_174 StaticText \" The \"\n    uid=114_175 link \"UN Department of Economics and Social Affairs (UNDESA)\" description=\"United Nations Department of Economic and Social Affairs\" url=\"https://en.wikipedia.org/wiki/United_Nations_Department_of_Economic_and_Social_Affairs\"\n      uid=114_176 StaticText \"UN Department of Economics and Social Affairs (UNDESA)\"\n    uid=114_177 StaticText \" has projected the world population to reach between 9 and 10 billion people by 2050, providing an 80% \"\n    uid=114_178 link \"confidence interval\" description=\"Confidence interval\" url=\"https://en.wikipedia.org/wiki/Confidence_interval\"\n      uid=114_179 StaticText \"confidence interval\"\n    uid=114_180 StaticText \" of 10–12 billion by the end of the 21st century,\"\n    uid=114_181 link \"[1]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:4-1\"\n      uid=114_182 StaticText \"[\"\n      uid=114_183 StaticText \"1\"\n      uid=114_184 StaticText \"]\"\n    uid=114_185 StaticText \" with a growth rate by then of zero. However, other \"\n    uid=114_186 link \"demographers\" description=\"Demography\" url=\"https://en.wikipedia.org/wiki/Demography\"\n      uid=114_187 StaticText \"demographers\"\n    uid=114_188 StaticText \" predict that the human population may begin to decline in the second half of the 21st century if global fertility rates continue to fall.\"\n    uid=114_189 link \"[7]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-7\"\n      uid=114_190 StaticText \"[\"\n      uid=114_191 StaticText \"7\"\n      uid=114_192 StaticText \"]\"\n    uid=114_193 StaticText \"The total number of births globally, as of 2024, is approximately 132 million/year, which is projected to peak during the period 2040–2045 at 141 million/year and then decline slowly to 126 million/year by 2100.\"\n    uid=114_194 link \"[8]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-8\"\n      uid=114_195 StaticText \"[\"\n      uid=114_196 StaticText \"8\"\n      uid=114_197 StaticText \"]\"\n    uid=114_198 StaticText \" The total number of deaths is currently 63 million/year and is projected to grow steadily to 122 million/year by 2100.\"\n    uid=114_199 link \"[9]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-9\"\n      uid=114_200 StaticText \"[\"\n      uid=114_201 StaticText \"9\"\n      uid=114_202 StaticText \"]\"\n    uid=114_203 StaticText \"The \"\n    uid=114_204 link \"global median age\" description=\"Population pyramid\" url=\"https://en.wikipedia.org/wiki/Population_pyramid\"\n      uid=114_205 StaticText \"global median age\"\n    uid=114_206 StaticText \" of human beings, as of 2026, is 31.1 years.\"\n    uid=114_207 link \"[10]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:0-10\"\n      uid=114_208 StaticText \"[\"\n      uid=114_209 StaticText \"10\"\n      uid=114_210 StaticText \"]\"\n    uid=114_211 link \"[2]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:5-2\"\n      uid=114_212 StaticText \"[\"\n      uid=114_213 StaticText \"2\"\n      uid=114_214 StaticText \"]\"\n    uid=114_215 heading \"History\" level=\"2\"\n    uid=114_216 StaticText \"Further information: \"\n    uid=114_217 link \"Estimates of historical world population\" url=\"https://en.wikipedia.org/wiki/Estimates_of_historical_world_population\"\n      uid=114_218 StaticText \"Estimates of historical world population\"\n    uid=114_219 StaticText \" and \"\n    uid=114_220 link \"Human history\" url=\"https://en.wikipedia.org/wiki/Human_history\"\n      uid=114_221 StaticText \"Human history\"\n    uid=114_222 link url=\"https://en.wikipedia.org/wiki/File:Illustration_of_contemporary_and_past_human_populations_Our_World_in_Data.png\"\n    uid=114_223 StaticText \"Visual comparison of the world population in past and present\"\n    uid=114_224 StaticText \"Estimates of world population by their nature are an aspect of \"\n    uid=114_225 link \"modernity\" description=\"Modernity\" url=\"https://en.wikipedia.org/wiki/Modernity\"\n      uid=114_226 StaticText \"modernity\"\n    uid=114_227 StaticText \", possible only since the \"\n    uid=114_228 link \"Age of Discovery\" url=\"https://en.wikipedia.org/wiki/Age_of_Discovery\"\n      uid=114_229 StaticText \"Age of Discovery\"\n    uid=114_230 StaticText \". Early estimates for the population of the world\"\n    uid=114_231 link \"[11]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-11\"\n      uid=114_232 StaticText \"[\"\n      uid=114_233 StaticText \"11\"\n      uid=114_234 StaticText \"]\"\n    uid=114_235 StaticText \" date to the 17th century: \"\n    uid=114_236 link \"William Petty\" url=\"https://en.wikipedia.org/wiki/William_Petty\"\n      uid=114_237 StaticText \"William Petty\"\n    uid=114_238 StaticText \", in 1682, estimated the world population at 320 million (current estimates ranging close to twice this number); by the late 18th century, estimates ranged close to one billion (consistent with current estimates).\"\n    uid=114_239 link \"[12]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-12\"\n      uid=114_240 StaticText \"[\"\n      uid=114_241 StaticText \"12\"\n      uid=114_242 StaticText \"]\"\n    uid=114_243 StaticText \" More refined estimates, broken down by continents, were published in the first half of the 19th century, at 600 million to 1 billion in the early 1800s and 800 million to 1 billion in the 1840s.\"\n    uid=114_244 link \"[13]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-13\"\n      uid=114_245 StaticText \"[\"\n      uid=114_246 StaticText \"13\"\n      uid=114_247 StaticText \"]\"\n    uid=114_248 StaticText \"It is difficult for estimates to be better than rough approximations, as even current population estimates are fraught with uncertainties from 3% to 5%.\"\n    uid=114_249 link \"[14]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-Kapitza2-14\"\n      uid=114_250 StaticText \"[\"\n      uid=114_251 StaticText \"14\"\n      uid=114_252 StaticText \"]\"\n    uid=114_253 heading \"Prehistoric patterns\" level=\"3\"\n    uid=114_254 StaticText \"The history of the world's population involves a great deal of speculation. Before 9000 BC, virtually all humans were hunter-gatherers living in small bands that usually verged on the edge of extinction. Survival depended on the capture of hunted animals; if supply of animals dwindled for any reason, humans would starve; if the human population grew too large the number of surviving animals would shrink, leading to starvation the next year for the hunters (humans had not yet invented the technique of domesticating and herding animals). The hunting cultures sometimes fished, and usually gathered wild seeds and nuts, but they did not plant or grow vegetables or any other crops. One very rough estimate is 8 million hunters lived circa 9000 BC when the first of several \"\"\n    uid=114_255 link \"agricultural revolutions\" description=\"Neolithic Revolution\" url=\"https://en.wikipedia.org/wiki/Neolithic_Revolution\"\n      uid=114_256 StaticText \"agricultural revolutions\"\n    uid=114_257 StaticText \"\" occurred in the eastern hemisphere (the dates are very conjectural). Around the year 9000 BC in the Middle East, for reasons unknown, some groups began to domesticate and graze sheep. The practice of cultivating plants was invented independently in three places: in the Middle East and Europe (wheat, 6500–3500 BC), in Southeast Asia (rice, 6800–4000 BC), and in Central America and Peru (corn, about 2500 BC).\"\n    uid=114_258 link \"[15]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-15\"\n      uid=114_259 StaticText \"[\"\n      uid=114_260 StaticText \"15\"\n      uid=114_261 StaticText \"]\"\n    uid=114_262 StaticText \"Agriculture provided a steady food supply that could be stored for a year or longer in order to minimize the risk of famine. Farm production could be expanded by systematic human exertion. The new technology of farming meant that the food supply was proportional to the number of workers who could plant and harvest the crops. Every new pair of hands meant more food for the community, so children were valued in agricultural societies. Later, additional workers found useful work in building irrigation canals and systems that provided a stable water supply for crops, especially in Egypt, Mesopotamia, India, China, Peru and Mexico. The population could now grow because new people paid their own way. (It would take many centuries before the arable land supply became a limiting factor.) However, death rates were high, especially for infants and children, so even with high birth rates growth was slow. The same amount of land could support either 1,000 hunters or 100,000 farmers, and it is easy to see which side ultimately would win a fight for the land. Farmers gathered in permanent villages, and through a process of warfare consolidated into much larger states, including those in China, India, Egypt and Mesopotamia. From 300 to 1400 AD large agricultural states also existed throughout the eastern United States, called the \"\"\n    uid=114_263 link \"Hopewell tradition\" url=\"https://en.wikipedia.org/wiki/Hopewell_tradition\"\n      uid=114_264 StaticText \"Hopewell tradition\"\n    uid=114_265 StaticText \"\" and \"\"\n    uid=114_266 link \"Mississippian cultures\" url=\"https://en.wikipedia.org/wiki/Mississippian_cultures\"\n      uid=114_267 StaticText \"Mississippian cultures\"\n    uid=114_268 StaticText \"\". They are most famous as \"\n    uid=114_269 link \"Mound Builders\" url=\"https://en.wikipedia.org/wiki/Mound_Builders\"\n      uid=114_270 StaticText \"Mound Builders\"\n    uid=114_271 StaticText \", but their culture collapsed (for unknown reasons) by 1500. The natives encountered by the English and French were nomadic hunters who supplemented their meat diet with cultivated vegetables.\"\n    uid=114_272 link \"[16]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-16\"\n      uid=114_273 StaticText \"[\"\n      uid=114_274 StaticText \"16\"\n      uid=114_275 StaticText \"]\"\n    uid=114_276 link \"[17]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-17\"\n      uid=114_277 StaticText \"[\"\n      uid=114_278 StaticText \"17\"\n      uid=114_279 StaticText \"]\"\n    uid=114_280 heading \"Ancient and post-classical history\" level=\"3\"\n    uid=114_281 StaticText \"Main articles: \"\n    uid=114_282 link \"Classical demography\" url=\"https://en.wikipedia.org/wiki/Classical_demography\"\n      uid=114_283 StaticText \"Classical demography\"\n    uid=114_284 StaticText \" and \"\n    uid=114_285 link \"Medieval demography\" url=\"https://en.wikipedia.org/wiki/Medieval_demography\"\n      uid=114_286 StaticText \"Medieval demography\"\n    uid=114_287 link url=\"https://en.wikipedia.org/wiki/File:Population_curve.svg\"\n    uid=114_288 StaticText \"Graph of human population from 10 000 BC to 2000 \"\n    uid=114_289 link \"AD\" description=\"Anno Domini\" url=\"https://en.wikipedia.org/wiki/Anno_Domini\"\n      uid=114_290 StaticText \"AD\"\n    uid=114_291 StaticText \". It shows exponential rise in world population that has taken place since the end of the seventeenth century.\"\n    uid=114_292 StaticText \"Estimates of the population of the world at the time agriculture emerged in around 10,000 BC have ranged between 1 million and 15 million.\"\n    uid=114_293 link \"[18]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-18\"\n      uid=114_294 StaticText \"[\"\n      uid=114_295 StaticText \"18\"\n      uid=114_296 StaticText \"]\"\n    uid=114_297 link \"[19]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-19\"\n      uid=114_298 StaticText \"[\"","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01Y8KsnhMRVjSPtTphLpz9rJ","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_019f1Ub61oJbEgmngfVXo6GP","name":"Bash","input":{"command":"cat > fetch_milestones.ts << 'EOF'\nimport { evaluateScript } from \"./servers/chrome-devtools/index.js\";\n\nconst result = await evaluateScript({\n  script: `() => {\n    // Find tables and look for billion milestone data\n    const tables = document.querySelectorAll('table');\n    let results = [];\n    tables.forEach((table, i) => {\n      const text = table.innerText;\n      if (text.includes('billion') || text.includes('Billion') || text.includes('1,000,000,000')) {\n        results.push({ index: i, text: text.substring(0, 1000) });\n      }\n    });\n    return results;\n  }`\n});\nconsole.log(JSON.stringify(result, null, 2));\nEOF\nnpx tsx fetch_milestones.ts 2>/dev/null","description":"Extract billion milestone tables from the page","timeout":30000},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":7861,"cache_read_input_tokens":15936,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":7861},"output_tokens":46,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"9fb5ea02-5c1b-459e-a2e4-ee4d8e47de89","uuid":"cfec48aa-545a-4a3e-ba16-79dcb902f7c8"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_019f1Ub61oJbEgmngfVXo6GP","type":"tool_result","content":"\"Script ran on page and returned:\\n```json\\n[{\\\"index\\\":0,\\\"text\\\":\\\"World population milestones in billions[62] (Worldometers estimates)\\\\nPopulation\\\\n(in billions)\\\\t1\\\\t2\\\\t3\\\\t4\\\\t5\\\\t6\\\\t7\\\\t8\\\\t9\\\\t10\\\\nYear\\\\t1804\\\\t1927\\\\t1960\\\\t1974\\\\t1987\\\\t1999\\\\t2011\\\\t2022\\\\t2037\\\\t2057\\\\nYears elapsed\\\\t—\\\\t123\\\\t33\\\\t14\\\\t13\\\\t12\\\\t12\\\\t11\\\\t15\\\\t 20 \\\\t—\\\"},{\\\"index\\\":14,\\\"text\\\":\\\"Starting at 500 million\\\\nPopulation\\\\n(in billions)\\\\t0.5\\\\t1\\\\t2\\\\t4\\\\t8\\\\t16\\\\nYear\\\\t1500\\\\t1804\\\\t1927\\\\t1974\\\\t2022\\\\t—\\\\nYears elapsed\\\\t—\\\\t304\\\\t123\\\\t47\\\\t48\\\\t — \\\\t—\\\"},{\\\"index\\\":15,\\\"text\\\":\\\"Starting at 375 million\\\\nPopulation\\\\n(in billions)\\\\t0.375\\\\t0.75\\\\t1.5\\\\t3\\\\t6\\\\t12\\\\nYear\\\\t1171\\\\t1715\\\\t1881\\\\t1960\\\\t1999\\\\tc. 2100[155]\\\\nYears elapsed\\\\t—\\\\t544\\\\t166\\\\t79\\\\t39\\\\tc. 100+\\\\t—\\\"}]\\n```\"","is_error":false}]},"parent_tool_use_id":null,"session_id":"9fb5ea02-5c1b-459e-a2e4-ee4d8e47de89","uuid":"07b6c2b3-31a7-45d4-a495-cbb3ddfdfdd5","timestamp":"2026-04-07T20:03:27.185Z","tool_use_result":{"stdout":"\"Script ran on page and returned:\\n```json\\n[{\\\"index\\\":0,\\\"text\\\":\\\"World population milestones in billions[62] (Worldometers estimates)\\\\nPopulation\\\\n(in billions)\\\\t1\\\\t2\\\\t3\\\\t4\\\\t5\\\\t6\\\\t7\\\\t8\\\\t9\\\\t10\\\\nYear\\\\t1804\\\\t1927\\\\t1960\\\\t1974\\\\t1987\\\\t1999\\\\t2011\\\\t2022\\\\t2037\\\\t2057\\\\nYears elapsed\\\\t—\\\\t123\\\\t33\\\\t14\\\\t13\\\\t12\\\\t12\\\\t11\\\\t15\\\\t 20 \\\\t—\\\"},{\\\"index\\\":14,\\\"text\\\":\\\"Starting at 500 million\\\\nPopulation\\\\n(in billions)\\\\t0.5\\\\t1\\\\t2\\\\t4\\\\t8\\\\t16\\\\nYear\\\\t1500\\\\t1804\\\\t1927\\\\t1974\\\\t2022\\\\t—\\\\nYears elapsed\\\\t—\\\\t304\\\\t123\\\\t47\\\\t48\\\\t — \\\\t—\\\"},{\\\"index\\\":15,\\\"text\\\":\\\"Starting at 375 million\\\\nPopulation\\\\n(in billions)\\\\t0.375\\\\t0.75\\\\t1.5\\\\t3\\\\t6\\\\t12\\\\nYear\\\\t1171\\\\t1715\\\\t1881\\\\t1960\\\\t1999\\\\tc. 2100[155]\\\\nYears elapsed\\\\t—\\\\t544\\\\t166\\\\t79\\\\t39\\\\tc. 100+\\\\t—\\\"}]\\n```\"","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_016kR6fKZG8kCDXaPXe7vQyA","type":"message","role":"assistant","content":[{"type":"text","text":"Here are the years when world population reached each billion milestone, according to the **Worldometers estimates** table on the Wikipedia article:\n\n| Population | Year Reached | Years Since Previous Billion |\n|------------|-------------|------------------------------|\n| 1 billion  | **1804**    | —                            |\n| 2 billion  | **1927**    | 123 years                    |\n| 3 billion  | **1960**    | 33 years                     |\n| 4 billion  | **1974**    | 14 years                     |\n| 5 billion  | **1987**    | 13 years                     |\n| 6 billion  | **1999**    | 12 years                     |\n| 7 billion  | **2011**    | 12 years                     |\n| 8 billion  | **2022**    | 11 years                     |\n\nA key takeaway: it took humanity ~300,000 years to reach the first billion (in 1804), then just 218 more years to go from 1 billion to 8 billion — with each successive billion coming faster than the last, though the pace has recently begun to slow."}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":697,"cache_read_input_tokens":23797,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":697},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"9fb5ea02-5c1b-459e-a2e4-ee4d8e47de89","uuid":"2ce426ad-19d6-4767-9cfc-e5cfdf3ffeff"}
{"type":"result","subtype":"success","is_error":false,"duration_ms":18050,"duration_api_ms":16168,"num_turns":3,"result":"Here are the years when world population reached each billion milestone, according to the **Worldometers estimates** table on the Wikipedia article:\n\n| Population | Year Reached | Years Since Previous Billion |\n|------------|-------------|------------------------------|\n| 1 billion  | **1804**    | —                            |\n| 2 billion  | **1927**    | 123 years                    |\n| 3 billion  | **1960**    | 33 years                     |\n| 4 billion  | **1974**    | 14 years                     |\n| 5 billion  | **1987**    | 13 years                     |\n| 6 billion  | **1999**    | 12 years                     |\n| 7 billion  | **2011**    | 12 years                     |\n| 8 billion  | **2022**    | 11 years                     |\n\nA key takeaway: it took humanity ~300,000 years to reach the first billion (in 1804), then just 218 more years to go from 1 billion to 8 billion — with each successive billion coming faster than the last, though the pace has recently begun to slow.","stop_reason":"end_turn","session_id":"9fb5ea02-5c1b-459e-a2e4-ee4d8e47de89","total_cost_usd":0.08745914999999999,"usage":{"input_tokens":4,"cache_creation_input_tokens":16049,"cache_read_input_tokens":48178,"output_tokens":854,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":16049,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"},"modelUsage":{"claude-sonnet-4-6":{"inputTokens":4,"outputTokens":854,"cacheReadInputTokens":48178,"cacheCreationInputTokens":16049,"webSearchRequests":0,"costUSD":0.08745914999999999,"contextWindow":200000,"maxOutputTokens":32000}},"permission_denials":[],"fast_mode_state":"off","uuid":"6bdfc8f6-7e8f-4322-b916-0b5b4abc8cfd"}
