Image: 1929 world population estimate

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Description: League of Nations and International Statistical Institute estimates of the world population in 1929
Title: 1929 world population estimate
Credit: Own work
Author: Mthomas2477
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: http://creativecommons.org/licenses/by-sa/4.0
Attribution Required?: Yes

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