1461 – Died Georg Purbach, German mathematician and astronomer (b. 1423)
1732 – Was born David Rittenhouse, American astronomer, inventor, and mathematician (d. 1796)
1832 - Charles Darwin begins trip through Rio de Janeiro
1838 - Steamship "Great Western" maiden voyage (Bristol, England, to NYC)
1964 - Unmanned Gemini 1 launched
1993 - STS-56 (Discovery) launches into orbit
