Completion requirements
Read this article. Some people contend that the beginning of World War II ended the Great Depression, while others suggest it was the end of World War II that brought economic restabilization.
Great Depression
The
Great Depression was a severe worldwide economic depression between
1929 and 1939 that began after a major fall in stock prices in the
United States. The economic contagion began around September 4, 1929,
and became known worldwide on Black Tuesday, the stock market crash of
October 29, 1929. The economic shock transmitted across the world,
impacting countries to varying degrees, with most countries experiencing
the Great depression from 1929. The Great Depression was the longest,
deepest, and most widespread depression of the 20th century and is
regularly used as an example of an intense global economic
depression.

Dorothea Lange's Migrant Mother depicts destitute pea pickers in
California, centering on Florence Owens Thompson, age 32, a mother of
seven children, in Nipomo, California, March 1936.
Between 1929 and 1932, worldwide gross domestic
product (GDP) fell by an estimated 15%. By comparison, worldwide GDP
fell by less than 1% from 2008 to 2009 during the Great Recession.
Some economies started to recover by the mid-1930s. However, in many
countries, the negative effects of the Great Depression lasted until the
beginning of World War II. Devastating effects were seen in both
rich and poor countries with falling personal income, prices, tax
revenues, profits and prices. International trade fell by more than 50%,
unemployment in the U.S. rose to 23% and in some countries rose as high
as 33%.

The unemployment rate in the U.S. during 1910–60, with the years of the Great Depression (1929–39) highlighted

The Dow Jones Industrial Average, 1928–1930
Cities around the world were hit hard, especially
those dependent on heavy industry. Construction was virtually halted in
many countries. Farming communities and rural areas suffered as crop
prices fell by about 60%. Faced with plummeting demand and few
job alternatives, areas dependent on primary sector industries suffered
the most.
Economic historians usually consider the catalyst of the Great Depression to be the sudden devastating collapse of U.S. stock market prices, starting on October 24, 1929. However, some dispute this conclusion and see the stock crash as a symptom, rather than a cause, of the Great Depression.
Source: Wikipedia, https://en.wikipedia.org/wiki/Great_Depression#Turning_point_and_recovery
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 License.