The leaders who spread Islam after Muhammad's death were Abu Bakr, Umar, Uthman, and Ali. If you want the answer from a website, I suggest going here
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Answer:
The domino theory is basically ,if one new country went communist in Asia then it would begin a chain reaction that would cause several more Southeast Asian countries becoming communist. it was the reason the united states went into the Vietnam war. since everyone was becoming a communist no laws were really set so they went into war. As the Vietnam War escalated, America's leaders and soldiers found themselves in a quagmire with no victory in sight. Eventually the war weakened the American economy, divided the people, and eroded the nation's morale.
Explanation:
Jefferson obtained land form France, by giving Napoleon 10 million dollars for New Orleans, which would give them control of the Mississippi River. But Napoleon needed money to fund his wars in Europe, so he asked .$15 million for all of New Orleans. And Jefferson agreed.