November 27

Tuesday 27, 2001:

A hydrogen atmosphere was discovered on the extrasolar planet Osiris by the Hubble Space Telescope, the first atmosphere detected on an extrasolar planet.

Wednesday 27, 1963:

The Convention on the Unification of Certain Points of Substantive Law on Patents for Invention is signed at Strasbourg.

Thursday 27, 1919:

Haiti becomes a signatory to the Buenos Aires copyright treaty.

Friday 27, 1868:

United States Army Lieutenant Colonel George Armstrong Custer leads an attack on a band of peaceful Cheyenne living on reservation land.

Friday 27, 1863:

American Civil War: Confederate cavalry leader John Hunt Morgan and several of his men escape the Ohio state prison and return safely to the South.