What was the long term effects of Missouri comprise of 1820 ?

The primary goal of the abolitionist movement was to a) immediately emancipate or free all enslaved people. b) allow the gradual release of enslaved people. c) end the importation of enslaved people from africa. d) make mandatory the education of all enslaved people.

Explain how colonists treated the native americans and what happened to natives. ! ^^^ 12 points

Historians sometimes rely on video recordings in researching past events because