- Was a soldier in the Austrian Army, 1965-66.
- Came to America in 1968 and became a citizen in 1983.
- Was a millionaire before the age of 22 due to his business investments, which included real estate and a bodybuilding-equipment company.
- Won the title of Mr. Olympia seven times and Mr. Universe three times; also won Junior Mr. Europe and Mr. World.
- Screen acting debut was in 1970's Hercules in New York (billed as Arnold Strong).
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