Sources used on > Sources

Used sources on

Every footer have sources for used data shown on that page. On this page you can find all sources on one place, but only link to their start page with description, not direct link to data.

Population books:

Most of the historical population numbers are from Some of these books are used to check few population data (country, state, city or town population). They also contain much more interesting historical population data:

Additional sources used in animation on home page:

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