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{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_016VjDx1aduNyczcMfNSmxU7","type":"tool_result","content":"## Latest page snapshot\nuid=115_0 RootWebArea \"World population - Wikipedia\" url=\"https://en.wikipedia.org/wiki/World_population\"\n  uid=115_1 generic live=\"polite\" relevant=\"additions text\"\n  uid=115_2 link \"Jump to content\" url=\"https://en.wikipedia.org/wiki/World_population#bodyContent\"\n    uid=115_3 StaticText \"Jump to content\"\n  uid=115_4 banner\n    uid=115_5 navigation \"Site\"\n      uid=115_6 button \"Main menu\" haspopup=\"menu\"\n    uid=115_7 link \"Wikipedia The Free Encyclopedia\" url=\"https://en.wikipedia.org/wiki/Main_Page\"\n      uid=115_8 image \"Wikipedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg\"\n      uid=115_9 image \"The Free Encyclopedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-tagline-en-25.svg\"\n    uid=115_10 search\n      uid=115_11 searchbox \"Search Wikipedia\" description=\"Search Wikipedia [ctrl-option-f]\" keyshortcuts=\"Ctrl+Alt+f\"\n      uid=115_12 button \"Search\"\n    uid=115_13 navigation \"Personal tools\"\n      uid=115_14 link \"Donate\" url=\"https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=en.wikipedia.org&uselang=en\"\n        uid=115_15 StaticText \"Donate\"\n      uid=115_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=115_17 StaticText \"Create account\"\n      uid=115_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=115_19 StaticText \"Log in\"\n  uid=115_20 navigation \"Contents\"\n    uid=115_21 heading \"Contents\" level=\"2\"\n    uid=115_22 button \"hide\"\n    uid=115_23 link \"(Top)\" url=\"https://en.wikipedia.org/wiki/World_population#\"\n      uid=115_24 StaticText \"(Top)\"\n    uid=115_25 link \"History\" url=\"https://en.wikipedia.org/wiki/World_population#History\"\n      uid=115_26 StaticText \"History\"\n    uid=115_27 button \"Toggle History subsection\" expandable\n    uid=115_28 link \"Global demographics\" url=\"https://en.wikipedia.org/wiki/World_population#Global_demographics\"\n      uid=115_29 StaticText \"Global demographics\"\n    uid=115_30 link \"Population by region\" url=\"https://en.wikipedia.org/wiki/World_population#Population_by_region\"\n      uid=115_31 StaticText \"Population by region\"\n    uid=115_32 link \"Largest populations by country\" url=\"https://en.wikipedia.org/wiki/World_population#Largest_populations_by_country\"\n      uid=115_33 StaticText \"Largest populations by country\"\n    uid=115_34 button \"Toggle Largest populations by country subsection\" expandable\n    uid=115_35 link \"Fluctuation\" url=\"https://en.wikipedia.org/wiki/World_population#Fluctuation\"\n      uid=115_36 StaticText \"Fluctuation\"\n    uid=115_37 button \"Toggle Fluctuation subsection\" expandable\n    uid=115_38 link \"Mathematical approximations\" url=\"https://en.wikipedia.org/wiki/World_population#Mathematical_approximations\"\n      uid=115_39 StaticText \"Mathematical approximations\"\n    uid=115_40 button \"Toggle Mathematical approximations subsection\" expandable\n    uid=115_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=115_42 StaticText \"Number of humans who have ever lived\"\n    uid=115_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=115_44 StaticText \"Human population as a function of food availability\"\n    uid=115_45 link \"See also\" url=\"https://en.wikipedia.org/wiki/World_population#See_also\"\n      uid=115_46 StaticText \"See also\"\n    uid=115_47 link \"Explanatory notes\" url=\"https://en.wikipedia.org/wiki/World_population#Explanatory_notes\"\n      uid=115_48 StaticText \"Explanatory notes\"\n    uid=115_49 link \"Sources\" url=\"https://en.wikipedia.org/wiki/World_population#Sources\"\n      uid=115_50 StaticText \"Sources\"\n    uid=115_51 link \"References\" url=\"https://en.wikipedia.org/wiki/World_population#References\"\n      uid=115_52 StaticText \"References\"\n    uid=115_53 button \"Toggle References subsection\" expandable\n    uid=115_54 link \"Further reading\" url=\"https://en.wikipedia.org/wiki/World_population#Further_reading\"\n      uid=115_55 StaticText \"Further reading\"\n    uid=115_56 link \"External links\" url=\"https://en.wikipedia.org/wiki/World_population#External_links\"\n      uid=115_57 StaticText \"External links\"\n  uid=115_58 main\n    uid=115_59 heading \"World population\" level=\"1\"\n    uid=115_60 button \"Go to an article in another language. Available in 75 languages\" haspopup=\"menu\"\n    uid=115_61 navigation \"Namespaces\"\n      uid=115_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=115_63 StaticText \"Article\"\n      uid=115_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=115_65 StaticText \"Talk\"\n    uid=115_66 navigation \"Views\"\n      uid=115_67 link \"Read\" url=\"https://en.wikipedia.org/wiki/World_population\"\n        uid=115_68 StaticText \"Read\"\n      uid=115_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=115_70 StaticText \"View source\"\n      uid=115_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=115_72 StaticText \"View history\"\n    uid=115_73 navigation \"Page tools\"\n      uid=115_74 button \"Tools\" haspopup=\"menu\"\n    uid=115_75 navigation \"Appearance\"\n      uid=115_76 StaticText \"Appearance\"\n      uid=115_77 button \"hide\"\n      uid=115_78 StaticText \"Birthday mode (Baby Globe)\"\n      uid=115_79 radio \"Disabled\"\n      uid=115_80 StaticText \"Disabled\"\n      uid=115_81 radio \"Enabled\" checked\n      uid=115_82 StaticText \"Enabled\"\n      uid=115_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=115_84 StaticText \"Learn more about Birthday mode\"\n      uid=115_85 StaticText \"Text\"\n      uid=115_86 radio \"Small\"\n      uid=115_87 StaticText \"Small\"\n      uid=115_88 radio \"Standard\" checked\n      uid=115_89 StaticText \"Standard\"\n      uid=115_90 radio \"Large\"\n      uid=115_91 StaticText \"Large\"\n      uid=115_92 StaticText \"Width\"\n      uid=115_93 radio \"Standard\" checked\n      uid=115_94 StaticText \"Standard\"\n      uid=115_95 radio \"Wide\"\n      uid=115_96 StaticText \"Wide\"\n      uid=115_97 StaticText \"Color \"\n      uid=115_98 StaticText \"(beta)\"\n      uid=115_99 radio \"Automatic\"\n      uid=115_100 StaticText \"Automatic\"\n      uid=115_101 radio \"Light\" checked\n      uid=115_102 StaticText \"Light\"\n      uid=115_103 radio \"Dark\"\n      uid=115_104 StaticText \"Dark\"\n    uid=115_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=115_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=115_107 StaticText \"From Wikipedia, the free encyclopedia\"\n    uid=115_108 link url=\"https://en.wikipedia.org/wiki/File:World_Population_Prospects.svg\"\n    uid=115_109 StaticText \"High, medium, and low projections of the future human world population\"\n    uid=115_110 link \"[1]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:4-1\"\n      uid=115_111 StaticText \"[\"\n      uid=115_112 StaticText \"1\"\n      uid=115_113 StaticText \"]\"\n    uid=115_114 StaticText \"In \"\n    uid=115_115 link \"world demographics\" description=\"Demographics of the world\" url=\"https://en.wikipedia.org/wiki/Demographics_of_the_world\"\n      uid=115_116 StaticText \"world demographics\"\n    uid=115_117 StaticText \", the \"\n    uid=115_118 StaticText \"world population\"\n    uid=115_119 StaticText \" is the total number of humans currently alive. It was estimated by the \"\n    uid=115_120 link \"United Nations\" url=\"https://en.wikipedia.org/wiki/United_Nations\"\n      uid=115_121 StaticText \"United Nations\"\n    uid=115_122 StaticText \" to have \"\n    uid=115_123 link \"exceeded 8 billion\" description=\"Day of Eight Billion\" url=\"https://en.wikipedia.org/wiki/Day_of_Eight_Billion\"\n      uid=115_124 StaticText \"exceeded 8 billion\"\n    uid=115_125 StaticText \" (8,000,000,000) on November 15, 2022. It took around 300,000 years of human \"\n    uid=115_126 link \"prehistory\" description=\"Prehistory\" url=\"https://en.wikipedia.org/wiki/Prehistory\"\n      uid=115_127 StaticText \"prehistory\"\n    uid=115_128 StaticText \" and \"\n    uid=115_129 link \"history\" description=\"Human history\" url=\"https://en.wikipedia.org/wiki/Human_history\"\n      uid=115_130 StaticText \"history\"\n    uid=115_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=115_132 link \"[2]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:5-2\"\n      uid=115_133 StaticText \"[\"\n      uid=115_134 StaticText \"2\"\n      uid=115_135 StaticText \"]\"\n    uid=115_136 StaticText \"The human population experienced \"\n    uid=115_137 link \"continuous growth\" description=\"Population growth\" url=\"https://en.wikipedia.org/wiki/Population_growth\"\n      uid=115_138 StaticText \"continuous growth\"\n    uid=115_139 StaticText \" following the \"\n    uid=115_140 link \"Great Famine of 1315–1317\" url=\"https://en.wikipedia.org/wiki/Great_Famine_of_1315%E2%80%931317\"\n      uid=115_141 StaticText \"Great Famine of 1315–1317\"\n    uid=115_142 StaticText \" and the end of the \"\n    uid=115_143 link \"Black Death\" url=\"https://en.wikipedia.org/wiki/Black_Death\"\n      uid=115_144 StaticText \"Black Death\"\n    uid=115_145 StaticText \" in 1350, when it had reached nearly 370 million.\"\n    uid=115_146 link \"[3]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-3\"\n      uid=115_147 StaticText \"[\"\n      uid=115_148 StaticText \"3\"\n      uid=115_149 StaticText \"]\"\n    uid=115_150 StaticText \" The highest global \"\n    uid=115_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=115_152 StaticText \"population growth rates\"\n    uid=115_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=115_154 link \"[4]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:1-4\"\n      uid=115_155 StaticText \"[\"\n      uid=115_156 StaticText \"4\"\n      uid=115_157 StaticText \"]\"\n    uid=115_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=115_159 link \"[5]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:8-5\"\n      uid=115_160 StaticText \"[\"\n      uid=115_161 StaticText \"5\"\n      uid=115_162 StaticText \"]\"\n    uid=115_163 StaticText \" The global population is still increasing, but there is significant uncertainty about its long-term trajectory due to changing \"\n    uid=115_164 link \"fertility\" description=\"Total fertility rate\" url=\"https://en.wikipedia.org/wiki/Total_fertility_rate\"\n      uid=115_165 StaticText \"fertility\"\n    uid=115_166 StaticText \" and \"\n    uid=115_167 link \"mortality\" description=\"Mortality rate\" url=\"https://en.wikipedia.org/wiki/Mortality_rate\"\n      uid=115_168 StaticText \"mortality\"\n    uid=115_169 StaticText \" rates.\"\n    uid=115_170 link \"[6]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-6\"\n      uid=115_171 StaticText \"[\"\n      uid=115_172 StaticText \"6\"\n      uid=115_173 StaticText \"]\"\n    uid=115_174 StaticText \" The \"\n    uid=115_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=115_176 StaticText \"UN Department of Economics and Social Affairs (UNDESA)\"\n    uid=115_177 StaticText \" has projected the world population to reach between 9 and 10 billion people by 2050, providing an 80% \"\n    uid=115_178 link \"confidence interval\" description=\"Confidence interval\" url=\"https://en.wikipedia.org/wiki/Confidence_interval\"\n      uid=115_179 StaticText \"confidence interval\"\n    uid=115_180 StaticText \" of 10–12 billion by the end of the 21st century,\"\n    uid=115_181 link \"[1]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:4-1\"\n      uid=115_182 StaticText \"[\"\n      uid=115_183 StaticText \"1\"\n      uid=115_184 StaticText \"]\"\n    uid=115_185 StaticText \" with a growth rate by then of zero. However, other \"\n    uid=115_186 link \"demographers\" description=\"Demography\" url=\"https://en.wikipedia.org/wiki/Demography\"\n      uid=115_187 StaticText \"demographers\"\n    uid=115_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=115_189 link \"[7]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-7\"\n      uid=115_190 StaticText \"[\"\n      uid=115_191 StaticText \"7\"\n      uid=115_192 StaticText \"]\"\n    uid=115_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=115_194 link \"[8]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-8\"\n      uid=115_195 StaticText \"[\"\n      uid=115_196 StaticText \"8\"\n      uid=115_197 StaticText \"]\"\n    uid=115_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=115_199 link \"[9]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-9\"\n      uid=115_200 StaticText \"[\"\n      uid=115_201 StaticText \"9\"\n      uid=115_202 StaticText \"]\"\n    uid=115_203 StaticText \"The \"\n    uid=115_204 link \"global median age\" description=\"Population pyramid\" url=\"https://en.wikipedia.org/wiki/Population_pyramid\"\n      uid=115_205 StaticText \"global median age\"\n    uid=115_206 StaticText \" of human beings, as of 2026, is 31.1 years.\"\n    uid=115_207 link \"[10]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:0-10\"\n      uid=115_208 StaticText \"[\"\n      uid=115_209 StaticText \"10\"\n      uid=115_210 StaticText \"]\"\n    uid=115_211 link \"[2]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:5-2\"\n      uid=115_212 StaticText \"[\"\n      uid=115_213 StaticText \"2\"\n      uid=115_214 StaticText \"]\"\n    uid=115_215 heading \"History\" level=\"2\"\n    uid=115_216 StaticText \"Further information: \"\n    uid=115_217 link \"Estimates of historical world population\" url=\"https://en.wikipedia.org/wiki/Estimates_of_historical_world_population\"\n      uid=115_218 StaticText \"Estimates of historical world population\"\n    uid=115_219 StaticText \" and \"\n    uid=115_220 link \"Human history\" url=\"https://en.wikipedia.org/wiki/Human_history\"\n      uid=115_221 StaticText \"Human history\"\n    uid=115_222 link url=\"https://en.wikipedia.org/wiki/File:Illustration_of_contemporary_and_past_human_populations_Our_World_in_Data.png\"\n    uid=115_223 StaticText \"Visual comparison of the world population in past and present\"\n    uid=115_224 StaticText \"Estimates of world population by their nature are an aspect of \"\n    uid=115_225 link \"modernity\" description=\"Modernity\" url=\"https://en.wikipedia.org/wiki/Modernity\"\n      uid=115_226 StaticText \"modernity\"\n    uid=115_227 StaticText \", possible only since the \"\n    uid=115_228 link \"Age of Discovery\" url=\"https://en.wikipedia.org/wiki/Age_of_Discovery\"\n      uid=115_229 StaticText \"Age of Discovery\"\n    uid=115_230 StaticText \". Early estimates for the population of the world\"\n    uid=115_231 link \"[11]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-11\"\n      uid=115_232 StaticText \"[\"\n      uid=115_233 StaticText \"11\"\n      uid=115_234 StaticText \"]\"\n    uid=115_235 StaticText \" date to the 17th century: \"\n    uid=115_236 link \"William Petty\" url=\"https://en.wikipedia.org/wiki/William_Petty\"\n      uid=115_237 StaticText \"William Petty\"\n    uid=115_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=115_239 link \"[12]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-12\"\n      uid=115_240 StaticText \"[\"\n      uid=115_241 StaticText \"12\"\n      uid=115_242 StaticText \"]\"\n    uid=115_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=115_244 link \"[13]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-13\"\n      uid=115_245 StaticText \"[\"\n      uid=115_246 StaticText \"13\"\n      uid=115_247 StaticText \"]\"\n    uid=115_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=115_249 link \"[14]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-Kapitza2-14\"\n      uid=115_250 StaticText \"[\"\n      uid=115_251 StaticText \"14\"\n      uid=115_252 StaticText \"]\"\n    uid=115_253 heading \"Prehistoric patterns\" level=\"3\"\n    uid=115_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=115_255 link \"agricultural revolutions\" description=\"Neolithic Revolution\" url=\"https://en.wikipedia.org/wiki/Neolithic_Revolution\"\n      uid=115_256 StaticText \"agricultural revolutions\"\n    uid=115_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=115_258 link \"[15]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-15\"\n      uid=115_259 StaticText \"[\"\n      uid=115_260 StaticText \"15\"\n      uid=115_261 StaticText \"]\"\n    uid=115_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=115_263 link \"Hopewell tradition\" url=\"https://en.wikipedia.org/wiki/Hopewell_tradition\"\n      uid=115_264 StaticText \"Hopewell tradition\"\n    uid=115_265 StaticText \"\" and \"\"\n    uid=115_266 link \"Mississippian cultures\" url=\"https://en.wikipedia.org/wiki/Mississippian_cultures\"\n      uid=115_267 StaticText \"Mississippian cultures\"\n    uid=115_268 StaticText \"\". They are most famous as \"\n    uid=115_269 link \"Mound Builders\" url=\"https://en.wikipedia.org/wiki/Mound_Builders\"\n      uid=115_270 StaticText \"Mound Builders\"\n    uid=115_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=115_272 link \"[16]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-16\"\n      uid=115_273 StaticText \"[\"\n      uid=115_274 StaticText \"16\"\n      uid=115_275 StaticText \"]\"\n    uid=115_276 link \"[17]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-17\"\n      uid=115_277 StaticText \"[\"\n      uid=115_278 StaticText \"17\"\n      uid=115_279 StaticText \"]\"\n    uid=115_280 heading \"Ancient and post-classical history\" level=\"3\"\n    uid=115_281 StaticText \"Main articles: \"\n    uid=115_282 link \"Classical demography\" url=\"https://en.wikipedia.org/wiki/Classical_demography\"\n      uid=115_283 StaticText \"Classical demography\"\n    uid=115_284 StaticText \" and \"\n    uid=115_285 link \"Medieval demography\" url=\"https://en.wikipedia.org/wiki/Medieval_demography\"\n      uid=115_286 StaticText \"Medieval demography\"\n    uid=115_287 link url=\"https://en.wikipedia.org/wiki/File:Population_curve.svg\"\n    uid=115_288 StaticText \"Graph of human population from 10 000 BC to 2000 \"\n    uid=115_289 link \"AD\" description=\"Anno Domini\" url=\"https://en.wikipedia.org/wiki/Anno_Domini\"\n      uid=115_290 StaticText \"AD\"\n    uid=115_291 StaticText \". It shows exponential rise in world population that has taken place since the end of the seventeenth century.\"\n    uid=115_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=115_293 link \"[18]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-18\"\n      uid=115_294 StaticText \"[\"\n      uid=115_295 StaticText \"18\"\n      uid=115_296 StaticText \"]\"\n    uid=115_297 link \"[19]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-19\"\n      uid=115_298 StaticText \"[\"","is_error":false}]},"parent_tool_use_id":null,"session_id":"120429b1-e4ec-4ad6-8ee5-d8b904848949","uuid":"a999397e-2012-4e16-a897-76859ddf788c","timestamp":"2026-04-07T20:03:45.287Z","tool_use_result":{"stdout":"## Latest page snapshot\nuid=115_0 RootWebArea \"World population - Wikipedia\" url=\"https://en.wikipedia.org/wiki/World_population\"\n  uid=115_1 generic live=\"polite\" relevant=\"additions text\"\n  uid=115_2 link \"Jump to content\" url=\"https://en.wikipedia.org/wiki/World_population#bodyContent\"\n    uid=115_3 StaticText \"Jump to content\"\n  uid=115_4 banner\n    uid=115_5 navigation \"Site\"\n      uid=115_6 button \"Main menu\" haspopup=\"menu\"\n    uid=115_7 link \"Wikipedia The Free Encyclopedia\" url=\"https://en.wikipedia.org/wiki/Main_Page\"\n      uid=115_8 image \"Wikipedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-wordmark-en-25.svg\"\n      uid=115_9 image \"The Free Encyclopedia\" url=\"https://en.wikipedia.org/static/images/mobile/copyright/wikipedia-tagline-en-25.svg\"\n    uid=115_10 search\n      uid=115_11 searchbox \"Search Wikipedia\" description=\"Search Wikipedia [ctrl-option-f]\" keyshortcuts=\"Ctrl+Alt+f\"\n      uid=115_12 button \"Search\"\n    uid=115_13 navigation \"Personal tools\"\n      uid=115_14 link \"Donate\" url=\"https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=en.wikipedia.org&uselang=en\"\n        uid=115_15 StaticText \"Donate\"\n      uid=115_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=115_17 StaticText \"Create account\"\n      uid=115_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=115_19 StaticText \"Log in\"\n  uid=115_20 navigation \"Contents\"\n    uid=115_21 heading \"Contents\" level=\"2\"\n    uid=115_22 button \"hide\"\n    uid=115_23 link \"(Top)\" url=\"https://en.wikipedia.org/wiki/World_population#\"\n      uid=115_24 StaticText \"(Top)\"\n    uid=115_25 link \"History\" url=\"https://en.wikipedia.org/wiki/World_population#History\"\n      uid=115_26 StaticText \"History\"\n    uid=115_27 button \"Toggle History subsection\" expandable\n    uid=115_28 link \"Global demographics\" url=\"https://en.wikipedia.org/wiki/World_population#Global_demographics\"\n      uid=115_29 StaticText \"Global demographics\"\n    uid=115_30 link \"Population by region\" url=\"https://en.wikipedia.org/wiki/World_population#Population_by_region\"\n      uid=115_31 StaticText \"Population by region\"\n    uid=115_32 link \"Largest populations by country\" url=\"https://en.wikipedia.org/wiki/World_population#Largest_populations_by_country\"\n      uid=115_33 StaticText \"Largest populations by country\"\n    uid=115_34 button \"Toggle Largest populations by country subsection\" expandable\n    uid=115_35 link \"Fluctuation\" url=\"https://en.wikipedia.org/wiki/World_population#Fluctuation\"\n      uid=115_36 StaticText \"Fluctuation\"\n    uid=115_37 button \"Toggle Fluctuation subsection\" expandable\n    uid=115_38 link \"Mathematical approximations\" url=\"https://en.wikipedia.org/wiki/World_population#Mathematical_approximations\"\n      uid=115_39 StaticText \"Mathematical approximations\"\n    uid=115_40 button \"Toggle Mathematical approximations subsection\" expandable\n    uid=115_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=115_42 StaticText \"Number of humans who have ever lived\"\n    uid=115_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=115_44 StaticText \"Human population as a function of food availability\"\n    uid=115_45 link \"See also\" url=\"https://en.wikipedia.org/wiki/World_population#See_also\"\n      uid=115_46 StaticText \"See also\"\n    uid=115_47 link \"Explanatory notes\" url=\"https://en.wikipedia.org/wiki/World_population#Explanatory_notes\"\n      uid=115_48 StaticText \"Explanatory notes\"\n    uid=115_49 link \"Sources\" url=\"https://en.wikipedia.org/wiki/World_population#Sources\"\n      uid=115_50 StaticText \"Sources\"\n    uid=115_51 link \"References\" url=\"https://en.wikipedia.org/wiki/World_population#References\"\n      uid=115_52 StaticText \"References\"\n    uid=115_53 button \"Toggle References subsection\" expandable\n    uid=115_54 link \"Further reading\" url=\"https://en.wikipedia.org/wiki/World_population#Further_reading\"\n      uid=115_55 StaticText \"Further reading\"\n    uid=115_56 link \"External links\" url=\"https://en.wikipedia.org/wiki/World_population#External_links\"\n      uid=115_57 StaticText \"External links\"\n  uid=115_58 main\n    uid=115_59 heading \"World population\" level=\"1\"\n    uid=115_60 button \"Go to an article in another language. Available in 75 languages\" haspopup=\"menu\"\n    uid=115_61 navigation \"Namespaces\"\n      uid=115_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=115_63 StaticText \"Article\"\n      uid=115_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=115_65 StaticText \"Talk\"\n    uid=115_66 navigation \"Views\"\n      uid=115_67 link \"Read\" url=\"https://en.wikipedia.org/wiki/World_population\"\n        uid=115_68 StaticText \"Read\"\n      uid=115_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=115_70 StaticText \"View source\"\n      uid=115_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=115_72 StaticText \"View history\"\n    uid=115_73 navigation \"Page tools\"\n      uid=115_74 button \"Tools\" haspopup=\"menu\"\n    uid=115_75 navigation \"Appearance\"\n      uid=115_76 StaticText \"Appearance\"\n      uid=115_77 button \"hide\"\n      uid=115_78 StaticText \"Birthday mode (Baby Globe)\"\n      uid=115_79 radio \"Disabled\"\n      uid=115_80 StaticText \"Disabled\"\n      uid=115_81 radio \"Enabled\" checked\n      uid=115_82 StaticText \"Enabled\"\n      uid=115_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=115_84 StaticText \"Learn more about Birthday mode\"\n      uid=115_85 StaticText \"Text\"\n      uid=115_86 radio \"Small\"\n      uid=115_87 StaticText \"Small\"\n      uid=115_88 radio \"Standard\" checked\n      uid=115_89 StaticText \"Standard\"\n      uid=115_90 radio \"Large\"\n      uid=115_91 StaticText \"Large\"\n      uid=115_92 StaticText \"Width\"\n      uid=115_93 radio \"Standard\" checked\n      uid=115_94 StaticText \"Standard\"\n      uid=115_95 radio \"Wide\"\n      uid=115_96 StaticText \"Wide\"\n      uid=115_97 StaticText \"Color \"\n      uid=115_98 StaticText \"(beta)\"\n      uid=115_99 radio \"Automatic\"\n      uid=115_100 StaticText \"Automatic\"\n      uid=115_101 radio \"Light\" checked\n      uid=115_102 StaticText \"Light\"\n      uid=115_103 radio \"Dark\"\n      uid=115_104 StaticText \"Dark\"\n    uid=115_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=115_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=115_107 StaticText \"From Wikipedia, the free encyclopedia\"\n    uid=115_108 link url=\"https://en.wikipedia.org/wiki/File:World_Population_Prospects.svg\"\n    uid=115_109 StaticText \"High, medium, and low projections of the future human world population\"\n    uid=115_110 link \"[1]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:4-1\"\n      uid=115_111 StaticText \"[\"\n      uid=115_112 StaticText \"1\"\n      uid=115_113 StaticText \"]\"\n    uid=115_114 StaticText \"In \"\n    uid=115_115 link \"world demographics\" description=\"Demographics of the world\" url=\"https://en.wikipedia.org/wiki/Demographics_of_the_world\"\n      uid=115_116 StaticText \"world demographics\"\n    uid=115_117 StaticText \", the \"\n    uid=115_118 StaticText \"world population\"\n    uid=115_119 StaticText \" is the total number of humans currently alive. It was estimated by the \"\n    uid=115_120 link \"United Nations\" url=\"https://en.wikipedia.org/wiki/United_Nations\"\n      uid=115_121 StaticText \"United Nations\"\n    uid=115_122 StaticText \" to have \"\n    uid=115_123 link \"exceeded 8 billion\" description=\"Day of Eight Billion\" url=\"https://en.wikipedia.org/wiki/Day_of_Eight_Billion\"\n      uid=115_124 StaticText \"exceeded 8 billion\"\n    uid=115_125 StaticText \" (8,000,000,000) on November 15, 2022. It took around 300,000 years of human \"\n    uid=115_126 link \"prehistory\" description=\"Prehistory\" url=\"https://en.wikipedia.org/wiki/Prehistory\"\n      uid=115_127 StaticText \"prehistory\"\n    uid=115_128 StaticText \" and \"\n    uid=115_129 link \"history\" description=\"Human history\" url=\"https://en.wikipedia.org/wiki/Human_history\"\n      uid=115_130 StaticText \"history\"\n    uid=115_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=115_132 link \"[2]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:5-2\"\n      uid=115_133 StaticText \"[\"\n      uid=115_134 StaticText \"2\"\n      uid=115_135 StaticText \"]\"\n    uid=115_136 StaticText \"The human population experienced \"\n    uid=115_137 link \"continuous growth\" description=\"Population growth\" url=\"https://en.wikipedia.org/wiki/Population_growth\"\n      uid=115_138 StaticText \"continuous growth\"\n    uid=115_139 StaticText \" following the \"\n    uid=115_140 link \"Great Famine of 1315–1317\" url=\"https://en.wikipedia.org/wiki/Great_Famine_of_1315%E2%80%931317\"\n      uid=115_141 StaticText \"Great Famine of 1315–1317\"\n    uid=115_142 StaticText \" and the end of the \"\n    uid=115_143 link \"Black Death\" url=\"https://en.wikipedia.org/wiki/Black_Death\"\n      uid=115_144 StaticText \"Black Death\"\n    uid=115_145 StaticText \" in 1350, when it had reached nearly 370 million.\"\n    uid=115_146 link \"[3]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-3\"\n      uid=115_147 StaticText \"[\"\n      uid=115_148 StaticText \"3\"\n      uid=115_149 StaticText \"]\"\n    uid=115_150 StaticText \" The highest global \"\n    uid=115_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=115_152 StaticText \"population growth rates\"\n    uid=115_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=115_154 link \"[4]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:1-4\"\n      uid=115_155 StaticText \"[\"\n      uid=115_156 StaticText \"4\"\n      uid=115_157 StaticText \"]\"\n    uid=115_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=115_159 link \"[5]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:8-5\"\n      uid=115_160 StaticText \"[\"\n      uid=115_161 StaticText \"5\"\n      uid=115_162 StaticText \"]\"\n    uid=115_163 StaticText \" The global population is still increasing, but there is significant uncertainty about its long-term trajectory due to changing \"\n    uid=115_164 link \"fertility\" description=\"Total fertility rate\" url=\"https://en.wikipedia.org/wiki/Total_fertility_rate\"\n      uid=115_165 StaticText \"fertility\"\n    uid=115_166 StaticText \" and \"\n    uid=115_167 link \"mortality\" description=\"Mortality rate\" url=\"https://en.wikipedia.org/wiki/Mortality_rate\"\n      uid=115_168 StaticText \"mortality\"\n    uid=115_169 StaticText \" rates.\"\n    uid=115_170 link \"[6]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-6\"\n      uid=115_171 StaticText \"[\"\n      uid=115_172 StaticText \"6\"\n      uid=115_173 StaticText \"]\"\n    uid=115_174 StaticText \" The \"\n    uid=115_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=115_176 StaticText \"UN Department of Economics and Social Affairs (UNDESA)\"\n    uid=115_177 StaticText \" has projected the world population to reach between 9 and 10 billion people by 2050, providing an 80% \"\n    uid=115_178 link \"confidence interval\" description=\"Confidence interval\" url=\"https://en.wikipedia.org/wiki/Confidence_interval\"\n      uid=115_179 StaticText \"confidence interval\"\n    uid=115_180 StaticText \" of 10–12 billion by the end of the 21st century,\"\n    uid=115_181 link \"[1]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:4-1\"\n      uid=115_182 StaticText \"[\"\n      uid=115_183 StaticText \"1\"\n      uid=115_184 StaticText \"]\"\n    uid=115_185 StaticText \" with a growth rate by then of zero. However, other \"\n    uid=115_186 link \"demographers\" description=\"Demography\" url=\"https://en.wikipedia.org/wiki/Demography\"\n      uid=115_187 StaticText \"demographers\"\n    uid=115_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=115_189 link \"[7]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-7\"\n      uid=115_190 StaticText \"[\"\n      uid=115_191 StaticText \"7\"\n      uid=115_192 StaticText \"]\"\n    uid=115_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=115_194 link \"[8]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-8\"\n      uid=115_195 StaticText \"[\"\n      uid=115_196 StaticText \"8\"\n      uid=115_197 StaticText \"]\"\n    uid=115_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=115_199 link \"[9]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-9\"\n      uid=115_200 StaticText \"[\"\n      uid=115_201 StaticText \"9\"\n      uid=115_202 StaticText \"]\"\n    uid=115_203 StaticText \"The \"\n    uid=115_204 link \"global median age\" description=\"Population pyramid\" url=\"https://en.wikipedia.org/wiki/Population_pyramid\"\n      uid=115_205 StaticText \"global median age\"\n    uid=115_206 StaticText \" of human beings, as of 2026, is 31.1 years.\"\n    uid=115_207 link \"[10]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:0-10\"\n      uid=115_208 StaticText \"[\"\n      uid=115_209 StaticText \"10\"\n      uid=115_210 StaticText \"]\"\n    uid=115_211 link \"[2]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-:5-2\"\n      uid=115_212 StaticText \"[\"\n      uid=115_213 StaticText \"2\"\n      uid=115_214 StaticText \"]\"\n    uid=115_215 heading \"History\" level=\"2\"\n    uid=115_216 StaticText \"Further information: \"\n    uid=115_217 link \"Estimates of historical world population\" url=\"https://en.wikipedia.org/wiki/Estimates_of_historical_world_population\"\n      uid=115_218 StaticText \"Estimates of historical world population\"\n    uid=115_219 StaticText \" and \"\n    uid=115_220 link \"Human history\" url=\"https://en.wikipedia.org/wiki/Human_history\"\n      uid=115_221 StaticText \"Human history\"\n    uid=115_222 link url=\"https://en.wikipedia.org/wiki/File:Illustration_of_contemporary_and_past_human_populations_Our_World_in_Data.png\"\n    uid=115_223 StaticText \"Visual comparison of the world population in past and present\"\n    uid=115_224 StaticText \"Estimates of world population by their nature are an aspect of \"\n    uid=115_225 link \"modernity\" description=\"Modernity\" url=\"https://en.wikipedia.org/wiki/Modernity\"\n      uid=115_226 StaticText \"modernity\"\n    uid=115_227 StaticText \", possible only since the \"\n    uid=115_228 link \"Age of Discovery\" url=\"https://en.wikipedia.org/wiki/Age_of_Discovery\"\n      uid=115_229 StaticText \"Age of Discovery\"\n    uid=115_230 StaticText \". Early estimates for the population of the world\"\n    uid=115_231 link \"[11]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-11\"\n      uid=115_232 StaticText \"[\"\n      uid=115_233 StaticText \"11\"\n      uid=115_234 StaticText \"]\"\n    uid=115_235 StaticText \" date to the 17th century: \"\n    uid=115_236 link \"William Petty\" url=\"https://en.wikipedia.org/wiki/William_Petty\"\n      uid=115_237 StaticText \"William Petty\"\n    uid=115_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=115_239 link \"[12]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-12\"\n      uid=115_240 StaticText \"[\"\n      uid=115_241 StaticText \"12\"\n      uid=115_242 StaticText \"]\"\n    uid=115_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=115_244 link \"[13]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-13\"\n      uid=115_245 StaticText \"[\"\n      uid=115_246 StaticText \"13\"\n      uid=115_247 StaticText \"]\"\n    uid=115_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=115_249 link \"[14]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-Kapitza2-14\"\n      uid=115_250 StaticText \"[\"\n      uid=115_251 StaticText \"14\"\n      uid=115_252 StaticText \"]\"\n    uid=115_253 heading \"Prehistoric patterns\" level=\"3\"\n    uid=115_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=115_255 link \"agricultural revolutions\" description=\"Neolithic Revolution\" url=\"https://en.wikipedia.org/wiki/Neolithic_Revolution\"\n      uid=115_256 StaticText \"agricultural revolutions\"\n    uid=115_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=115_258 link \"[15]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-15\"\n      uid=115_259 StaticText \"[\"\n      uid=115_260 StaticText \"15\"\n      uid=115_261 StaticText \"]\"\n    uid=115_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=115_263 link \"Hopewell tradition\" url=\"https://en.wikipedia.org/wiki/Hopewell_tradition\"\n      uid=115_264 StaticText \"Hopewell tradition\"\n    uid=115_265 StaticText \"\" and \"\"\n    uid=115_266 link \"Mississippian cultures\" url=\"https://en.wikipedia.org/wiki/Mississippian_cultures\"\n      uid=115_267 StaticText \"Mississippian cultures\"\n    uid=115_268 StaticText \"\". They are most famous as \"\n    uid=115_269 link \"Mound Builders\" url=\"https://en.wikipedia.org/wiki/Mound_Builders\"\n      uid=115_270 StaticText \"Mound Builders\"\n    uid=115_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=115_272 link \"[16]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-16\"\n      uid=115_273 StaticText \"[\"\n      uid=115_274 StaticText \"16\"\n      uid=115_275 StaticText \"]\"\n    uid=115_276 link \"[17]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-17\"\n      uid=115_277 StaticText \"[\"\n      uid=115_278 StaticText \"17\"\n      uid=115_279 StaticText \"]\"\n    uid=115_280 heading \"Ancient and post-classical history\" level=\"3\"\n    uid=115_281 StaticText \"Main articles: \"\n    uid=115_282 link \"Classical demography\" url=\"https://en.wikipedia.org/wiki/Classical_demography\"\n      uid=115_283 StaticText \"Classical demography\"\n    uid=115_284 StaticText \" and \"\n    uid=115_285 link \"Medieval demography\" url=\"https://en.wikipedia.org/wiki/Medieval_demography\"\n      uid=115_286 StaticText \"Medieval demography\"\n    uid=115_287 link url=\"https://en.wikipedia.org/wiki/File:Population_curve.svg\"\n    uid=115_288 StaticText \"Graph of human population from 10 000 BC to 2000 \"\n    uid=115_289 link \"AD\" description=\"Anno Domini\" url=\"https://en.wikipedia.org/wiki/Anno_Domini\"\n      uid=115_290 StaticText \"AD\"\n    uid=115_291 StaticText \". It shows exponential rise in world population that has taken place since the end of the seventeenth century.\"\n    uid=115_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=115_293 link \"[18]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-18\"\n      uid=115_294 StaticText \"[\"\n      uid=115_295 StaticText \"18\"\n      uid=115_296 StaticText \"]\"\n    uid=115_297 link \"[19]\" url=\"https://en.wikipedia.org/wiki/World_population#cite_note-19\"\n      uid=115_298 StaticText \"[\"","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false}}
{"type":"assistant","message":{"model":"claude-sonnet-4-6","id":"msg_01Jzq8Tay8EK6aoJgxmyXqmN","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01WtD9wkQ6YKoVMP8ifCUnKn","name":"Bash","input":{"command":"cat > /Users/kunchen/github/kunchenguid/axi/bench-browser/results/chrome-devtools-mcp-code/tabular_data_analysis/run5/workspace/fetch_table.ts << 'EOF'\nimport { evaluateScript } from \"./servers/chrome-devtools/index.js\";\n\nconst result = await evaluateScript({\n  script: `() => {\n    // Find all tables\n    const tables = document.querySelectorAll('table');\n    let found = '';\n    for (const table of tables) {\n      const text = table.innerText;\n      if (text.includes('billion') || text.includes('Billion') || text.includes('1,000,000,000')) {\n        found += '\\\\n\\\\n=== TABLE ===\\\\n' + text;\n      }\n    }\n    return found;\n  }`\n});\nconsole.log(result);\nEOF\nnpx tsx /Users/kunchen/github/kunchenguid/axi/bench-browser/results/chrome-devtools-mcp-code/tabular_data_analysis/run5/workspace/fetch_table.ts 2>&1","description":"Extract tables containing billion milestone data from the Wikipedia page"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":7933,"cache_read_input_tokens":15936,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":7933},"output_tokens":36,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"120429b1-e4ec-4ad6-8ee5-d8b904848949","uuid":"9ab53635-5767-438d-8ded-81add7dc38b8"}
{"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01WtD9wkQ6YKoVMP8ifCUnKn","type":"tool_result","content":"Script ran on page and returned:\n```json\n\"\\n\\n=== TABLE ===\\nWorld 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—\\n\\n=== TABLE ===\\nStarting 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—\\n\\n=== TABLE ===\\nStarting 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":"120429b1-e4ec-4ad6-8ee5-d8b904848949","uuid":"b2e5ad2e-8f2e-47c9-b88f-ba031334de4a","timestamp":"2026-04-07T20:03:53.526Z","tool_use_result":{"stdout":"Script ran on page and returned:\n```json\n\"\\n\\n=== TABLE ===\\nWorld 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—\\n\\n=== TABLE ===\\nStarting 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—\\n\\n=== TABLE ===\\nStarting 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_01R4Dusw3qAiQjoRpqAw9taM","type":"message","role":"assistant","content":[{"type":"text","text":"Here are the years when world population reached each billion milestone, according to the **World population milestones** table on Wikipedia (Worldometers estimates):\n\n| Population (billions) | Year |\n|----------------------|------|\n| 1 billion | **1804** |\n| 2 billion | **1927** |\n| 3 billion | **1960** |\n| 4 billion | **1974** |\n| 5 billion | **1987** |\n| 6 billion | **1999** |\n| 7 billion | **2011** |\n| 8 billion | **2022** |\n\nKey observations:\n- It took all of human history until **1804** to reach 1 billion people.\n- The next billion took **123 years** (to 1927).\n- Each subsequent billion came faster — as few as **11–14 years** apart from the 4th through 8th billion.\n- The 8 billion milestone was reached on **November 15, 2022**."}],"stop_reason":null,"stop_sequence":null,"stop_details":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":736,"cache_read_input_tokens":23869,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":736},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"},"context_management":null},"parent_tool_use_id":null,"session_id":"120429b1-e4ec-4ad6-8ee5-d8b904848949","uuid":"04d1439a-4422-4c1f-a452-bd183acf580a"}
{"type":"result","subtype":"success","is_error":false,"duration_ms":20564,"duration_api_ms":18680,"num_turns":3,"result":"Here are the years when world population reached each billion milestone, according to the **World population milestones** table on Wikipedia (Worldometers estimates):\n\n| Population (billions) | Year |\n|----------------------|------|\n| 1 billion | **1804** |\n| 2 billion | **1927** |\n| 3 billion | **1960** |\n| 4 billion | **1974** |\n| 5 billion | **1987** |\n| 6 billion | **1999** |\n| 7 billion | **2011** |\n| 8 billion | **2022** |\n\nKey observations:\n- It took all of human history until **1804** to reach 1 billion people.\n- The next billion took **123 years** (to 1927).\n- Each subsequent billion came faster — as few as **11–14 years** apart from the 4th through 8th billion.\n- The 8 billion milestone was reached on **November 15, 2022**.","stop_reason":"end_turn","session_id":"120429b1-e4ec-4ad6-8ee5-d8b904848949","total_cost_usd":0.088332,"usage":{"input_tokens":4,"cache_creation_input_tokens":16160,"cache_read_input_tokens":48250,"output_tokens":883,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":16160,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"},"modelUsage":{"claude-sonnet-4-6":{"inputTokens":4,"outputTokens":883,"cacheReadInputTokens":48250,"cacheCreationInputTokens":16160,"webSearchRequests":0,"costUSD":0.088332,"contextWindow":200000,"maxOutputTokens":32000}},"permission_denials":[],"fast_mode_state":"off","uuid":"e784d1f5-7f55-45f8-95f1-260509e396ce"}
