- Oct 1 In the U.S. state of California, Stanford University opens its doors.
- Oct 7 British Open Golf, St Andrews: Hugh Kirkaldy wins by 2 strokes from brother Andrew Kirkaldy and Willie Fernie; last Open contested in a single day over 36 holes
- Oct 12 Astronomical Society of France is inaugurated
- Oct 20 1st International 6 day bike race at New York's Madison Square Garden begins
- Oct 25 1st International 6 day bike race (NY Madison Square Garden) ends
- Oct 28 Quake strikes Mino-Owari, Japan kills 7,300