On the surface, the 1920’s appeared to be a very prosperous decade — an era of innovation, excitement, and optimism. A closer look, however, reveals quite a different story.

When we look at stock market crashes, September has had the most on the Dow Jones Industrial Average since being founded by Charles Dow on May 26, 1896. October on the other hand has had the biggest crashes with 9 of them on a daily percentage basis.