Stanisława Walasiewicz

Stanisława Walasiewicz (3 April 1911 – 4 December 1980), also known as Stefania Walasiewicz, Stanisława Walasiewiczówna (see Polish name) and Stella Walsh, was a Polish track and field athlete, who became a women's Olympic champion in the 100 metres. She became an American citizen in 1947. Upon her death, it was discovered that Walasiewicz had a Y chromosome and was intersex.