found
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Wikipedia, viewed January 11, 2017
(Stanisława Walasiewicz, also known as Stefania Walasiewicz, Stanisława Walasiewiczowna and Stella Walsh (3 April 1911--4 December 1980) was a Polish track and field athlete, who became a women's Olympic champion in the 100 metres. It was later learned that Walasiewicz had a Y chromosome and was intersex.)