Answer:
1945 (after WW2)
Step-by-step explanation:
The stock market crash of 1929 was one of the key events that set off the Great Depression, a period of severe economic slump that lasted from 1929 to 1939.
The stock market dropped precipitously after the crash and hit its lowest point in July 1932. The widely used stock market index, the Dow Jones Industrial Average (DJIA), dropped from a high of 381.2 in September 1929 to a low of 41.2 in July 1932.
After that, the stock market began to slowly rebound, but it wasn't until the end of World War II in 1945 that it started to expand consistently. Consequently, following the Great Depression, it took over ten years for the average stock price to start increasing once more.