Final answer:
The stock market collapse in 1929 was not successfully stopped. The Federal Reserve and banks tried to stabilize the market, but their efforts failed. This resulted in a crash that caused significant financial losses and the start of the Great Depression.
Step-by-step explanation:
The collapse of the stock market in 1929 was not successfully stopped by any specific entity. The Federal Reserve attempted to rein in banks and prevent them from granting too many loans for stock speculation, but their efforts were ineffective. As the market continued to decline, several banks, including Chase National and J.P. Morgan, tried to stabilize it by purchasing large amounts of blue chip stocks, but even their efforts failed. Ultimately, the stock market crashed on October 29, 1929, known as 'Black Tuesday', causing devastating financial losses and leading to the Great Depression.