The events of 1904.
- January: Argo Mills is consumed by fire. [1]
- January 27: Ann Arbor Railroad trestle over the Huron River collapses
- March: Flooding on the Huron River
- Fall: Michigan v Chicago football at Ferry Field, captured on film: [2] [3]
- December 31: Ann Arbor High School destroyed by fire. [4]