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How the Great Depression Started and Ended

The Great Depression's real causes, from the 1929 crash to bank failures and the Dust Bowl, the New Deal programs that followed, and how WWII ended it.

The Great Depression was the worst economic downturn in U.S. history. It began with the stock market crash of October 1929 and lasted until the country mobilized for World War II in the early 1940s.

At its worst, in 1933, 24.9 percent of the American workforce was out of work, about 12.8 million people (FDR Presidential Library). The crisis did not stay inside the United States. It spread to Canada, Britain, France, Germany and other industrial countries, though the details below focus on the American experience.

What caused the Great Depression?

No single event caused it, but a stock market crash, a wave of bank failures and years of drought and bad farming practices combined to make it deep and long. This section covers the three causes historians point to most often. It does not cover every theory economists have debated, since scholars still argue about how much weight each factor deserves.

The trouble started on the stock market. Prices had climbed for years on borrowed money, and confidence collapsed fast. On October 24, 1929, later called Black Thursday, panicked investors traded a record 12.9 million shares in a single day (History.com). The market fell again on October 29, known as Black Tuesday, when about 16.4 million shares changed hands, and by the time it stopped sliding two months later the Dow Jones Industrial Average had lost almost half its value (Britannica). Understanding why markets swing this way is part of basic economics.

Banks failed by the thousands as depositors panicked and rushed to withdraw their savings. The Federal Deposit Insurance Corporation counts roughly 1,350 bank suspensions in 1930, 2,300 in 1931, 1,450 in 1932, and about 4,000 in 1933 alone, most of them before mid-March (FDIC). Because deposits were not insured yet, families who kept their savings in a failed bank often lost everything.

What was the Dust Bowl?

The Dust Bowl was a period of severe drought and giant dust storms that struck the Great Plains in the 1930s, on top of the economic crisis. Years of plowing without soil conservation left topsoil loose, and when rain stopped, wind carried it away in choking clouds (National Weather Service). This section covers the storms themselves, not the broader farm economics of the era.

The worst single storm hit on April 14, 1935, now called Black Sunday. A wall of dust up to 60 miles an hour swept across the Oklahoma and Texas panhandles and into Kansas, turning afternoon into total darkness in places (National Weather Service). Thousands of farm families in the region lost their land and moved west, many to California, in search of work.

What was daily life like during the Great Depression?

Daily life for millions of Americans meant going without steady work, enough food or a stable home. Wage income across the country fell 42.5 percent between 1929 and 1933 (FDR Presidential Library). This section describes conditions in the United States and does not cover how the Depression played out in other countries.

City families lined up at soup kitchens and breadlines. Some people who lost their homes built shacks out of scrap wood and tin, and clusters of these shelters became known as “Hoovervilles,” a bitter joke aimed at President Hoover, who many blamed for not doing enough. Families that kept their homes often cut spending sharply, patched clothes instead of buying new ones, and grew food in home gardens. Children left school early to help support their families, and many young men rode freight trains looking for any job they could find.

What was the New Deal?

The New Deal was a set of federal programs under President Franklin D. Roosevelt meant to provide relief, create jobs and reform the financial system. It began in 1933 and continued through the rest of the decade. This section names a few major programs. It does not attempt to list every New Deal agency, since dozens existed.

The Civilian Conservation Corps, started in 1933, put young men to work on conservation projects like planting trees and building trails. The Works Progress Administration, created in 1935, employed millions on public construction, arts and writing projects. The Tennessee Valley Authority built dams and brought electricity to a rural region. The Agricultural Adjustment Act aimed to raise crop prices by paying farmers to produce less (National Archives).

To rebuild trust in banks, Roosevelt signed the Banking Act of 1933, which created the Federal Deposit Insurance Corporation. When FDIC insurance took effect on January 1, 1934, more than 12,500 banks joined and deposits up to $2,500 were protected (FDIC). Roosevelt also signed the Social Security Act on August 14, 1935, creating a national system of old-age and unemployment benefits (Social Security Administration). These reforms were part of a bigger debate over the government’s role that still shapes civics and economic policy today.

How did the Great Depression end?

The Great Depression ended as the United States built up factories, jobs and armed forces for World War II. Government spending on ships, planes, weapons and supplies put millions of people back to work in the late 1930s and early 1940s. This section covers the American mobilization. It does not cover how the war years affected the economies of the other countries hit hardest by the Depression.

As factories retooled for war production, unemployment fell sharply from its Depression-era highs. The buildup was not the only reason the economy recovered, since New Deal programs and financial reforms had already started rebuilding confidence, but wartime production finished the job of putting the country back to work.

This period sits inside the larger story taught in U.S. history, alongside the world war that followed it.

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