Animated mapsHistorical MapsWorld Slaves as percentage of population (1790 – 1860) December 1, 2015 Alex This post may contain affiliate links. As an Amazon Associate, we earn from qualifying purchases. Related Posts:When each U.S. states population exceeded 1 million…Slavery in the United States: A Comprehensive OverviewPercentage of Blacks in America'sThe U.S. largest citiesThe Arab Slave Trade: A Millennium of Human TraffickingSlave population of the southern states of the U.S.Percent of population with a disability by U.S. countySlave Population of the United States