Stanisława Walasiewicz, also known as Stefania Walasiewicz, and Stella Walsh, was a Polish-American track and field athlete, who became a women's Olympic champion in the 100 metres. Born in Poland and raised in the United States, she became an American citizen in 1947. Stanisława Walasiewicz (Poland) set the women's 100 m world record of 11.9 in Los Angeles, United States on August 1, 1932. It stood 1 day, until Hilda Strike's 11.9 on August 2, 1932 (equalling it). Wiki link