The posting would not be in violation of the clause because there is a learning purpose to the items.
Explanation:
Stock Market Crash of 1929 - Many believe erroneously that the stock market crash that occurred on Black Tuesday, October 29, 1929 is one and the same with the Great Depression. In fact, it was one of the major causes that led to the Great Depression.
Answer:
The Mongols
Explanation:
It was established by the leader of the Mongol empire, Kublai Khan.