Addressing the Chamber of Commerce in Cincinnati, US President Woodrow Wilson declares that 'The business of neutrality is over. The nature of modern war leaves no state untouched'
- Greece declares war on Germany
- Bob Elliott, MLB player (Pittsburgh Pirates, Boston Braves), born in San Francisco (d. 1966)
- Mareo Ishiketa, Japanese composer, born in Wakayama, Japan (d. 1996)