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The population of the United States by the census of the year 1860 was as follows For the Free States..... 18,904,504 For the fifteen Slave States (free)..... 8,280,545 For ...
Justin Madron’s map of demographic change ... representation of population increases and decreases. The hexbin approach provided clarity and allowed us to identify nuanced patterns in migration ...
TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of ...