The best reason as to why the caliphs demonstrated religious tolerance to Jews and Christians would be because "D. the caliphs knew freedom of worship led to an overall stronger empire," since allowing people to worship freely meant that they were less likely to rebel against the state.
African Colonies, Oceanic Colonies, and Northern South American Colonies
The second largest was Chicago.
Answer:
Domino Theory
Explanation:
The Domino Theory referred to the idea that if a country became communist, neighboring countries would become communist too, in a more or less short time frame.
The name from the theory comes from the fact that when dominoes are arranged vertically, if one domino falls down, all the other fall down as well.
The Domino Theory was one of the basis for the Vietnam War. The American leadership believed that if Vietnam became communist, neighboring countries such as Laos, Thailand or Malasya would soon become communist too.
In the end, the Domino Theory did not prove fully correct. For example, while Laos did become communist soon after, niether Thailand nor Malasya became so.
D. He united the Mongol tribes and became known as the "ruler of all men". Scary dude, to be honest!
Hope this helped.