President:
Pres: Theodore Roosevelt begins second term
General
- Business: William Haywood and others found International Workers of the World (Wobblies) from opposition to AF of L
Rotary Club founded
- Culture: Over one million immigrants enter the US this year
- Sports: Second World Series
Ty Cobb begins major league baseball career
East
- Pennsylvania: First regular cinema established in Pittsburgh
Hershey's chocolate factory opens
Midwest
- Illinois: First national black paper founded in Chicago
- Minnesota: Ship runs aground near Duluth causing sailors to freeze
South
West and Pacific
- California: Mount Wilson observatory completed
- Idaho: Assassination of former governor of Idaho Frank Steunenberg by bomb at his home - Harry Orchard (alias) accused and he indicates being hired by Bill Haywood (IWW) – Western Federation of Miners union boss – Haywood acquitted 1907
- Nevada: Las Vegas founded
- Utah: Bingham Copper Mine started