Why were north american settlements often founded by joint stock companies?

Was the us justified in using the atomic bomb on hiroshima and nagasaki? why or why not?

How did the life of sharecroppers affect their children? children went to school because the farms were small, with little work, children had to work on the farm, so they rarely went to school children learned skilled professions as they worked around the farm. children left home when they became adults because the land wasn't theirs.

What is one way that the congress of vienna changed the map of europe?