On This Day

What Happened on July 11, 1663

Historical Events

Historic Event

Oxford mathematician John Wallis gives a lecture on Euclid’s parallel postulate, first Western attempt to derive the parallel postulate as a theorem

1663 Highlights

About July 11, 1663

Day of the Week: Wednesday
How Long Ago? 358 years, 6 months and 10 days
Leap Year: No

Star Sign: Cancer