Frank Robinson Hit His 500th Career Home Run On this day, in 1971 Hall-of-Famer Frank Robinson hit his 500th career home run off Detroit's Fred Scherman in the ninth-inning. September 13, 1971 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