Evidence suggests that the Minoans disappeared so suddenly because of the massive volcanic eruption in the Santorini Islands. Excavations there have uncovered Akrotiri, a Minoan town which was buried in this eruption, one of the largest in recorded history. The eruption was only 70 miles from Crete, the center of the Minoan civilization. Recent evidence suggests that the Santorini eruption was up to 10 times more powerful than the eruption of Krakatoa in 1883. It caused massive climatic disruption and the blast was heard over 3000 miles away.
We know now that the Santorini eruption and the collapse of the volcanic cone into the sea caused tsunamis which devastated the coasts of Crete and other Minoan coastal towns. Radiocarbon dating shows that a large tsunamis Crete at the same time as the Santorini eruption.
Answer:
The rich slave owners lost their labor, making them lose much money from farming large amounts of acres. The poor whites also had to compete with the freedmen for jobs, making job availability difficult.
After fighting the war in Korea, the US had learned that communism would spread. In order to keep with their policy of containment, they had to rush in and stop Viet Cong from spreading communism (much like the domino theory that the US had). Had Viet Cong not wanted to bring about communism, there would be no need for invasion, and the domino theory would have yet to be proven.
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The answer is the annular eclipse
