| Date | Event |
|---|---|
| May 01 1904 | Antonín Dvořák Died |
| May 04 1904 | U.S. Begins Constructing Panama Canal |
| May 04 1904 | Steward Meets Royce At Midland Hotel |
| May 05 1904 | Cy Young Threw First Perfect Game |
| May 09 1904 | City Of Truro Locomotive Exceeds 100 Mph |
| May 10 1904 | The Horch Cir. Motorwagenwerke AG Is Founded |
| May 15 1904 | Russian Minefield Sinks Japanese Battleships |
| May 21 1904 | FIFA Founded In Paris |