It can be found in the water table
The search for religious freedom played a crucial role in the settlement of America, since the main reason the Puritans left England for America was to escape religious persecution.
You had to be literate, made the voting areas farther away from where black people lived, and I can't think of a third one
The Soviet Union - they were the cause and driving force behind Communism in Eastern Europe from the 1920/30s into the 80s. Without their military power and influence, communism in Eastern Europe fell away.