race is some ones physical characteristics such as eye color or height
while ethnicity is you culture, ancestry and language.
So if it is in all states and national elections then that must mean it is the result of the 19th amendment that would have allowed women the right to vote.
Compare: They both were fighting to gain and improve rights for African Americans
Contrast:
1863:
The purpose of the march was to advocate for the civil and economic rights of African Americans.
1941:
This march was designed to pressure the U.S. government into desegregating the armed forces and providing fair working opportunities for African Americans.
