The aftermath of the Civil War was exhilarating, hopeful and violent. Four million newly freed African Americans faced the future of previously-unknown freedom from the old plantation system, with few rights or protections, and surrounded by a war-weary and intensely resistant white population.
In colonial times, the New England colonies had cold climates, a short growing season, and brittle soil, which could grow little crops. Therefore, the colonists has to result to a different method to sustain their economy and turned to fishing, lumber, shipbuilding, and other industrial occupations.
He was in NASA's Mercury Seven Astronauts
I hope that's help:0
Generally speaking, yes it is true that a historian's analysis of events involves knowing the difference between facts and theory, since it is impossible to make a strong and respectable claim without citing specific, factual historical evidence.