Answer:
The major similarity between French and Spanish colonies in the Americas is that both were what one textbook I teach from calls "frontiers of inclusion." In both of these countries' colonies, Native Americans were made an integral part of society.
Establishing causation is incredibly helpful for historians to understand the past, since simply understand that certain events took place doesn't necessarily make you understand how these events took place, and why. Causation allows you to put events in context and to determine why people may have acted the way they did.
Republic for at least the last half
It was Julius and Ethel Rosenberg who were convicted of giving U.S. atomic secrets to the Soviet Union. This was considered to be a very high form of treason.
