http://www.investopedia.com/features/crashes/

I read the article in Investopedia.com. It showed 7 greatest market crashes. I heard the first Four from some books and saw the last Three in my life.

That is history which we suppose to learn from it. Everyday there are many people or corporation filing bankruptcy. I am in the real estate field, I encounter many owners that could not make their mortgage payment and was forced to sell. My listings currently available at this time exceeds the level in previous few years in the same period.

Lost in mahjong or bridge is different with lost in investment. An investment mistake may cost life's savings.