nomads are people who moved from one place to another depending on the weather, food, etc. bipedal are animals who are able to walk with 2 legs. hunters and gatherers preceeded nomads and decided to settle in one place instead of moving around periodically. tool makers makes tool I guess.
The American Revolution was principally
caused by colonial opposition to British attempts to impose greater control over the colonies and to make them repay the crown for its defense of them during the French and Indian War (1754–63)
Islam spread with the expansion on the Ottoman empire. When they conquer were exposed to this religion and many people converted. They also used trading to spread Islam trough southeast Asia, Africa an many more parts of the world. The first conversions were flexible, s it was easy for people to convert into Islam.
Harry S Truman The Buck Stops Here means I'm the ultimately responsible person in this organization. Other people can pass the buck to me, but I can't pass the buck to anyone else.