1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000		Poly History   1940s . 1940 "Arroyo Seco Parkway" (Pasadena Freeway) opens from the L.A. River to Pasadena . 1945 Miss Henley retires from Poly after 30 years . 1948 Diver Sammy Lee of L.A. becomes the first Asian American to win an Olympic gold medal . 1949 Poly's campus is covered in snow, providing a rare chance for students to build snowmen
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