Editing Census (section)

== World population estimates ==
The earliest estimate of the world population was made by [[Giovanni Battista Riccioli]] in 1661; the next by [[Johann Peter Süssmilch]] in 1741, revised in 1762; the third by [[Karl Friedrich Wilhelm Dieterici]] in 1859.<ref>{{Cite journal|last=Willcox|first=Walter|date=1931|title=International Migrations, Volume II: Interpretations|url=https://www.nber.org/chapters/c5103.pdf |archive-url=https://web.archive.org/web/20160425122720/http://www.nber.org/chapters/c5103.pdf |archive-date=2016-04-25 |url-status=live|journal=NBER|volume=78 |issue=3 |page=309 |doi=10.2307/1784930 |jstor=1784930 |bibcode=1931GeogJ..78..309C }}</ref>

In 1931, Walter Willcox published a table in his book, ''International Migrations: Volume II Interpretations'', that estimated the 1929 world population to be roughly 1.8 billion.

[[File:1929 world population estimate.png|center|thumb|300px|The [[League of Nations]] and [[International Statistical Institute]] estimates of the world population in 1929]]