Willie Mays Hit His 500th Career Home Run On this day, in 1965 the 34-year-old Willie Mays's hit his 47th home run of the season and was his 500th of his career. September 13, 1965 Sport: Baseball Trivia What Are the Five Events That Make Up the Modern Olympic Pentathon? Which Nations Won the Gold, Silver and Bronze Medals the Last Time Baseball Was an Olympic Sport? sports in this article Baseball tags in this article Fan On This Day SportsEngine