Timeline of the history of the United States (1930–1949)
Open-knowledge reference entry
This section of the timeline of United States history concerns events from 1930 to 1949.
1930s
Presidency of Herbert C. Hoover
1930 – The Great Depression in the United States continues to worsen, reaching a nadir in early 1933.
1930 – The Motion Picture Production Code becomes set of industry censorship guidelines governing production of the vast majority of United States motion pictures released by major studios; is effective for 38 years
1930 – Frozen vegetables, packaged by Clarence Birdseye, become the first frozen food to go on sale
1930 – The Democrats take Congress in the Midterms. Will keep it until 1946.
1930 - Hawley-Smoot Tariff
1930 - Clyde Tombaugh discovers Pluto
1930 - Sinclair Lewis is the first American to win Nobel Prize for Literature
1931 – Empire State Building opens in New York.
1931 – Japanese invasion of Manchuria, start of World War II in the Pacific.
1931 – The Whitney Museum of American Art opens to the public in New York City.
1931 - “The Star-Spangled Banner” becomes official U.S. national anthem
1931 - Hoover vetoes Veteran Bonus
1931 - Pearl Buck publishes The Good Earth making heroes of the Chinese peasants
1932 – Stimson Doctrine opposes Japanese expansion into Manchuria
1932 – Norris-La Guardia Act strengthens labor unions
1932 - Baby son of Charles Lindbergh was kidnapped and found dead
1932 – Bonus Army marches on DC; repressed by President Hoover
1932 – Reconstruction Finance Corporation finances relief
1932 – 1932 United States presidential election: Franklin D. Roosevelt elected president, John Nance Garner elected vice president
1933 – Chicago Mayor Anton Cermak killed during a failed assassination attempt on President-elect Roosevelt by Giuseppe Zangara; the intended target was not wounded.
1933 - Over 12 million or 25% of Americans were unemployed
1933 – 20th Amendment, establishing the beginning and ending of the terms of the elected federal offices.
Presidency of Franklin D. Roosevelt
March 4, 1933 – Roosevelt becomes the 32nd president.
“Timeline of the history of the United States (1930–1949)” enters the record as open-knowledge reference entry. Crown Archives preserves that source wording while asking what Timeline, history and United can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 25, 2026. The linked authority identifier is Q7805969. The first chronological checks are 1930, 1949, 1933 and 1946.
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This entry incorporates text from “Timeline of the history of the United States (1930–1949)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.