How did technology help make voyages possible during the age of exploration?

17 million negroes cannot do as you suggest qnd wait for the hearts of men to change. tjis we cannot do unless we persue aggressively goals which all other americans achieved ove 150 years ago. how might martin luther king jr. respond to this statement?

Jefferson davis was the president of the united states of america during the civil war. true or false?

What is roosevelt’s corollary ? where did it specifically deal with?