This Promise of the new deal for the American people was made by which US president

How does the process of constructing a historical narrative differ from the process of creating a timeline

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.

Who did the first work in creating vaccines