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The original was posted on /r/todayilearned by /u/sillytrooper on 2023-07-31 14:50:11.

Original Title: TIL about The Tuskegee Syphilis Experiment, a real-life study conducted by the U.S. Public Health Service from 1932 to 1972, where African American men with syphilis were left untreated to observe the natural progression of the disease.