January 11:
A.D. 1693: Mt. Etna, Sicily, erupts.
Important because people died and stuff.
A.D. 1787: Titania and Oberon, moons of Uranus, are discovered by William Herschel.
Not really important, but interesting (for some people).
A.D. 1813: The first pineapple plants are planted in Hawaii.
It's interesting how non-native flora and fauna can so quickly become identifiable with a place.
A.D. 1849: Elizabeth Blackwell becomes the first American woman to earn a medical degree.