The United States as a whole enumerated people by race in every census since its first census in 1790 .
Before the U.S. acquired independence from Great Britain , many of the Thirteen Colonies conducted censuses of their own where they enumerated their populations by race .
The U.S.   as a whole enumerated people by race in every census since U.S. 's first census in 1790 .
Before the U.S. acquired independence from Great Britain , many of the Thirteen Colonies conducted censuses of their own where they enumerated their populations by race .