On this day

January 15

2 verified events

achievement

Chien-Shiung Wu Proves Parity Violation

Physicist Chien-Shiung Wu announced experimental proof that nature violates 'conservation of parity,' overturning a basic assumption of physics; her Columbia colleagues Lee and Yang won the Nobel, but Wu-later the first woman to lead the American Physical Society-did not. (Shares Jan 15 with Gary Locke's governorship.)

achievement

Gary Locke Becomes Governor of Washington

Gary Locke was inaugurated as governor of Washington, the first Chinese American governor in US history and the first Asian American governor of a mainland state.