Why is the stock market crash of 1929 not a cause if the great depression?

Look at the explanation

Explanation:

Millions of Americans began to purchase stock, causing the market to dramatically increase in value. For the economy, so many Americans invested money in the stock market that stocks became inflated in price. In essence, stocks were selling for more money than they were worth. In which made the stock market crash.

eroupe is a great mideval place and alot of wars went on alao