507 years ago is the answer.
1962
The Cuban Missile Crisis came in 1962. It began when the Soviet Union installed nuclear missiles on Cuba, which is in close proximity to US territory, just 90 miles south of Florida. During the crisis, leaders of the United States and the Soviet Union were engaged in a political and military standoff for thirteen days.
The crisis finally ended when the Soviet Union agreed to remove the missiles in Cuba and the US promised not to invade Cuba in return. <span>
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The bridge "rose" from the ocean as vast amounts of ocean water became tied up in the enormous glaciers of the last ice age. That exposed the broad continental shelves now covered by the Bering Strait and created the land bridge. The bridge last arose around 70,000 years ago.
Answer:
After Sparta defeated Athens, they set up a new government ruled by the "Thirty Tyrants". This only lasted for one year, as the local Athenians overthrew the tyrants and restored democracy. After the battles, the Spartan general Brasidas raised an army of allies and helots and marched the length of Greece to the Athenian colony of Amphipolis in Thrace, which controlled several nearby silver mines and their product supplied much of the Athenian war fund.
