- 1930

- Betty Boop introduced to the world
- 1931
- 1932
- 1933

- Adolf Hitler elected chancellor of Germany, given absolute power

- Civilian Conservation Corps (CCC) puts thousands of men to work in Minnesota's forests.
- 1934
- 1935
- 1936
- 1937

- Austin-based Hormel Foods launches SPAM.
- 1938

- University of Minnesota's coach Bernie Bierman's book, Winning Football is published.
- 1939
- Germany invades Poland, triggering World War II in Europe.
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