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.
Everest was climbed in May 29th 1953 and is located Nepal China
The Stock Market Crash of 1929 occurred during a period of unregulated wealth and excess. On October 14, 1929, investors were selling stock in large amounts. In order to halt the slide in the Dow Jones, the market indicator for the purchase and sale of stocks, Richard Whitney, the Vice President of the Stock Exchange, initiated a plan to purchase large quantities of blue chip stocks, stocks in large and reputable companies. This action resulted in temporarily halting the slide in stocks. The value of the market had increased tenfold in the 1920's as a result of speculation and inflated value in the market. A margin call occurs when value of the account falls below the broker's required minimum. While Whitney invested in the market to halt complete collapse, Charles Merrill of Bank of America suggested that his clients eliminate their financial obligations entirely. He realized that the value of the market was inflated and that the rise in stocks had peaked. The crash itself witnessed a lost of more than $30 billion in value in two days. Both General Electric and General Motors lost more than fifty percent of the value of their stocks during the crash.