Robust population data exist only for the last two or three centuries Until the late 18th century, few governments had ever performed an accurate census. Visual comparison of the world population in past and present estimates of world population by their nature are an aspect of modernity, possible only since the age of discovery Early estimates for the population of the world [10] date to the 17th century William petty, in 1682, estimated the world population at 320 million (current estimates ranging close to twice this number) Durand, john d., 1974, historical estimates of world population
An evaluation, university of pennsylvania, population center, analytical and technical reports, number 10, table 2 Haub, carl, 1995, how many people have ever lived on earth? population today, february, p [15] the world population more than tripled during the 20th century from about 1.65 billion in 1900 to 5.97 billion in 1999 [16][17][18] it reached the 2 billion mark in 1927, the 3 billion mark in 1960, 4 billion in 1974, and 5 billion in 1987 [19] the overall population of the world is approximately 8 billion as of november 2022. World population milestones went unnoticed until the 20th century, since there was no reliable data on global population dynamics
Permission is granted to copy, distribute and/or modify this document under the terms of the gnu free documentation license, version 1.2 or any later version published by the free software foundation The median scenario of the un's 2022 world population prospects predicts the following populations by region in 2050 compared to population in 2000 and shows the differing growth rates for each over the first half of this century.
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