During the Great Depression, which lasted from 1929 to the late 1930s, what event occurred on October 29, 1929, that is often cited as the starting point of the economic downturn? Answer: The stock market crash, also known as Black Tuesday, occurred on October 29, 1929, marking the beginning of the Great Depression. Trillions of dollars were lost, leading to widespread panic and economic devastation. In response to the Great Depression, what economic theory was developed by British economist John Maynard Keynes? Answer: Keynesian economics, developed by John Maynard Keynes, suggested that government intervention was necessary during times of economic crisis to stimulate demand and bring the economy out of recession. What New Deal program, implemented by President Franklin D. Roosevelt, aimed to provide jobs for unemployed Americans during the Great Depression? Answer: The Works Progress Administration (WPA) was a New Deal program established in 1935 to provide jobs for millions of unemployed Americans. The WPA employed individuals in various public works projects, including the construction of buildings, roads, and bridges. What event ultimately helped to lift the United States out of the Great Depression? Answer: World War II is often credited with lifting the United States out of the Great Depression. The war created massive demand for goods and services, leading to economic growth and increased employment opportunities.