1939 - The National Baseball Hall of Fame and Museum was dedicated in Cooperstown, New York. This was exactly one hundred years to the day on which the game was invented by Abner Doubleday.
1948 - Ben Hogan won his first U.S. Open golf classic.
1997 - Interleague play began in baseball, ending a 126-year tradition of separating the major leagues until the World Series.
