2006-12-01 04:12:01 · 3 answers · asked by Eric G 2 in Arts & Humanities ➔ History
Around 200 million. - 0 AD
206 million - 500 AD
250-300 million - 1000 AD
900 million - 1800 AD
1.6 billion - 1900 AD
2.5 billion - 1950 AD
3 billion - 1960
3.6 billion - 1970
4.5 billion - 1980
5.3 billion - 1990
6 billion - 2000
10 billion - 2050 at our current rate of growth.
2006-12-01 06:16:56 · answer #1 · answered by Its not me Its u 7 · 0⤊ 1⤋
The precise answer to your specific question is zero.
There is no such thing as 0 A.D. This chronological delineation only begins with 1 AD.
The estimates given by the other respondents are purely speculative and could easily be off by 20-40 percent.
The closest thing to an accurate estimate can only be researched through Roman census' which were used for tax purposes. Other civilized nations did not have such interest in the numbers of people.
A case logically be made that there were many more people but because of health, nutrition, war, and evolving disease, they all died out much more quickly.
2006-12-01 17:38:35 · answer #2 · answered by angelthe5th 4 · 0⤊ 0⤋
150 million - http://desip.igc.org/populationmaps.html
approx. 200 million - http://www.populationeducation.org/eyeocontentserver/data/upload/jcurve_nov2002.pdf
200 million - http://geography.about.com/od/obtainpopulationdata/a/worldpopulation.htm
comparison of estimates ranging from 170 million to 400 million - http://www.census.gov/ipc/www/worldhis.html
300 million - http://www.un.org/esa/population/publications/sixbillion/sixbilpart1.pdf (see page 3, first paragraph)
2006-12-01 16:28:36 · answer #3 · answered by umlando 4 · 0⤊ 1⤋