The stock market is a volatile creature, and it can crash. The worst crashes in history have occurred throughout the 20th century as technology evolved and investors lost faith in the system. This list covers some of the biggest market crashes that have happened over time.

The Great Wall Street Crash of 1929

The Great Wall Street Crash of 1929 was a major stock market crash that occurred on Thursday, October 24, 1929. It began the great depression in the United States and Canada.

The crash began around 3 pm (EST) on Black Thursday and continued throughout the entire week, though prices did not reach their lowest point until Black Monday (October 28). Some stocks were up to 40% lower than they had been before the crash.

Black Monday, 1987

In 1987, the DJIA suffered its largest one-day percentage decline in history. On October 19th of that year, the market …