Frederick Douglass was an African American abolitionist during the time of the Civil War. An abolitionist is someone who wants to abolish, or get rid of, slavery.
Answer:
they were primary labor source for plantations in the chesapeake by 1630
The issue of the exclusion of blacks from the voting system in the primaries. after the 1960's, however, the Voting Rights Act of 1965 entrenched the rights of African American voters in the political system, joining the political system for the first time in the 20th Century. As black people who had remained in the region became affiliated with the Democratic Party, so more White Americans moved towards supporting the Republican Party, creating a stark split.
Assuming you're referring to the Palestine Riots of 1929, the best option would be "religion," since the main cause was a rivalry between Muslims and Jews of access to the West Wall.