What geographic feature served as the biggest catalyst for westward expansion and why ?

The southern states were unhappy with reconstruction. they saw it as punishment by the_? . they were also against_? 2_ , as shown by the black codes. ? 1 ? 2 radical republicans providing equal rights to men and women democrats providing blacks the right to vote moderate republicans providing women us citizen ship

How did the environments in north america affect the development of america indian cultures in the period just before europeans arrived

In general which explains why communist revolutions did not happen