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The original was posted on /r/todayilearned by /u/mikechi2501 on 2025-05-06 21:54:57+00:00.

Original Title: TIL in 1970, actress Patty Duke was sleeping with 3 men prior to the birth of her son. Desi Arnaz Jr, actor John Astin and promoter Michael Tell. She married Tell, told her son Arnaz Jr was the father and John Astin ended up adopting the child, who would go on to become actor Sean Astin.