Another recession.
During the recession the stock market crashed
The New York City neighborhood of Harlem became "<span>c. a political and social center for African American artists and philosophers"</span> during the early years of the 20th century, since this was known as the "Harlem Renaissance".
It drove down the cost of producing, as things were made quicker, more efficiently, and steadily.
One of the reasons why the Great Leap Forward failed in China is because "<span>Poor implementation, natural disasters, and the withdrawal of Soviet support led to the failure," although it had much more to do with poor implementation. </span>
