It was "Mitchell Palmer" who was the attorney general under President Wilson who led a witch-hunt to round up communists in the 1920s, since these were known as the "Palmer Raids".
While there were many other factors, threats and violence definitely were key aspects to Hitler's rise to power. His use of terror tactics made people obedient through fear. After acting upon his threats, they knew if they didn't follow him, there was a good chance they would die. He used a sort of manipulation that while brutal, tends to be effective, as portrayed through many events and leaders in history, such as the French Revolution, Mao Zedong (China), Stalin (Russia), and Leopold II (Congo).
Technological advancements, such as the beginning of the space race and things of that sort.
Answer:
The Iroquois Confederacy was a confederation of Native American Indians which was originally composed of 5 tribes consisting of the Mohawk, Oneida, Onondaga, Cayuga and Seneca peoples.