1904
| February 9 | Japan made a surprise attack on Russia’s Port Arthur naval base, Manchuria, beginning the Russo-Japanese War. |
| February 23 | U.S. acquired Panama Canal Zone for $10 million. |
| March | G. M. Barrows’ first story published in Argosy, the first instance in the U.S. of a female author both publishing science fiction and doing so under her real name. |
Births and Deaths:
Alexander Samalman - Amelia Reynolds Long - Clifford D. Simak - Donald B. Thompson - Earl Binder - Edmond Hamilton - Frank Gruber - Groff Conklin - H. Beam Piper - Helen Finn - James Williams - K. Martin Carlson - Leslyn Heinlein - Lester Dent - MayBelle Anshutz - Morojo - Norvell Page - R. R. Winterbotham - Rose Wyn - Sally Rand
Convention series started or ended:
Onetime conventions:
Bids:
Publications started or ended:
Publishers founded or closed:
Awards made, started or ended:
Stores opened or closed:
Clubs founded or disbanded:
Fanhistory:
New fanspeak coined:
Miscellaneous:
Asia:
Australia:
Britain:
Canada:
Europe:
Ireland:
New Zealand:
US:
Alexander Samalman - Amelia Reynolds Long - Clifford D. Simak - Donald B. Thompson - Earl Binder - Edmond Hamilton - Frank Gruber - Groff Conklin - H. Beam Piper - Helen Finn - James Williams - K. Martin Carlson - Leslyn Heinlein - Lester Dent - MayBelle Anshutz - Morojo - Norvell Page - R. R. Winterbotham - Rose Wyn - Sally Rand
Rest of the World:
| 1903 | 1904 | 1905 |
