It started in China in the early 1330's. The plague mainly affected rodents and fleas, but since China did trades with Asia and Europe, these countries were soon also affected.
In 1347, Italian merchant ships returned from the Black Sea to Europe. Many on board were already dying from the plague.
The fleas began to affect Europe's people, which allowed it to spread rapidly among the people.
The Bubonic plague was a period in history when Europe and much of the world's population was reduced.
Answer:
In statistics, correlation is the general direction and stregth of the collectiveness of the points (general trend) relative to another output of sets.
Causation is an effect caused by an action, correlation doesnt always equal causation.
The articles of confederation was the first form of government in the united states.
<span>Albert Einstein became famous for the theory of relativity, which laid the basis for the release of atomic energy. </span>
