October 27

Monday 27, 1986:

The London Stock Exchange is deregulated and computerisation is introduced for the first time.

Saturday 27, 1973:

The Canyon City meteorite, a 1.4 kg chondrite type meteorite strikes in Fremont County, Colorado.

Wednesday 27, 1954:

Benjamin O. Davis Jr. becomes the first African-American general in the United States Air Force.

Thursday 27, 1870:

Marshal François Achille Bazaine surrenders to Prussian forces at Metz along with 140,000 French soldiers in one of the biggest French defeats of the Franco-Prussian War.

Tuesday 27, 1795:

The United States and Spain sign the Treaty of Madrid, which establishes the boundaries between Spanish colonies and the U.S.