City's black residents now top all groups

African descendants have called Philadelphia home for centuries, with the first U.S. Census, in 1790, listing 2,099 "free" blacks and 373 slaves.

Source: http://www.philly.com/r?19=961&43=166721&44=120586554&32=3796&7=195342&40=http%3A%2F%2Fwww.philly.com%2Finquirer%2Ffront_page%2F20110425_City_s_black_residents_now_top_all_groups.html

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