Question

According to Pope Urban II, what was the best way to get people to unite?

Answer 1

According to Pope Urban II, the best way to get people to unite is to give them a common enemy.

Pope Urban II pitched the Crusades as a religious duty with a side of fighting.

The Black Death was most likely spread through Western Europe by rats and their fleas.

The Black Death was the second major epidemic of its time. The first known epidemic of of the disease that also caused "The Black Death" was The Plague of Justinian.