The Mongols gained power because they had a strong army. ... They consolidated power by winning over the Chinese by ruling in a traditional Chinese style and building dams and the Grand Canal. Kublai Khan built these water projects.
Because they had to pay for more materials to rebuild there buildings after the war
<span>technological advances that lowered transportation costs dramatically</span>
1992 was the 500th anniversary of the day Columbus came to america. But in 1992 it was changed from Columbus day to indigenous peoples day. That is what led to massive protests in 1992.
