Events in History
Historic Publication
Researcher George Soper publishes the results of his investigation into recent typhoid outbreaks in the New York area and announces that Mary Mallon [Typhoid Mary] is the likely source of the outbreak

Typhoid Mary
- The 2nd Hague Peace Conference meets in an attempt to stop the arms race; Germany resists, but conference does make important rules around the rights of neutral powers
Deaths in History
- William Le Baron Jenney, American architect (father of skyscraper), dies at 74