It was written during the 1970s that 75% of the people who had ever been born were alive at that moment. This was grossly false.
Assuming that we start counting from about 50,000 B.C., the time when modern Homo sapiens appeared on the earth (and not from 700,000 B.C. when the ancestors of Homo sapiens appeared, or several million years ago when hominids were present), taking into account that all population data are a rough estimate, and assuming a constant growth rate applied to each period up to modern times, it has been estimated http://www.prb.org/Articles/2002/HowManyPeopleHaveEverLivedonEarth.aspx that a total of approximately 106 billion people have been born since the dawn of the human species, making the population currently alive roughly 6% of all people who have ever lived on planet Earth. World Population Clock: 7 Billion People (2015) - Worldometers http://www.worldometers.info/world-population/ http://www.worldometers.info/world-population/ World Population Clock: 7 Billion People (2015) - Worl... http://www.worldometers.info/world-population/ How many people are there in the world? World population has reached 7 billion. World population live counter with data sheets, graphs, maps, and census data... View on www.worldometers.info http://www.worldometers.info/world-population/ Preview by Yahoo
