October 27 is the 300th day of the year (301st in leap years) in the Gregorian calendar. There are 65 days remaining until the end of the year. This date is slightly more likely to fall on a Tuesday, Thursday or Saturday (58 in 400 years each) than on Sunday or Monday (57), and slightly less likely to occur on a Wednesday or Friday (56).
312 – Constantine the Great is said to have received his famous Vision of the Cross.
1795 – The United States and Spain sign the Treaty of Madrid, which establishes the boundaries between Spanish colonies and the U.S.
1838 – Missouri governor Lilburn Boggs issues the Extermination Order, which orders all Mormons to leave the state or be exterminated.
1904 – The first underground New York City Subway line opens; the system becomes the biggest in United States, and one of the biggest in the world.
1936 – Mrs Wallis Simpson obtains her divorce decree nisi, which would eventually allow her to marry King Edward VIII of the United Kingdom, thus forcing his abdication from the throne.
1961 – NASA tests the first Saturn I rocket in Mission Saturn-Apollo 1.
1964 – Ronald Reagan delivers a speech on behalf of the Republican candidate for president, Barry Goldwater. The speech launches his political career and comes to be known as “A Time for Choosing”.
Actress Marla Maples turns 54
Actor John Cleese turns 78
Singer Kelly Osbourne turns 33
Rapper T-Wayne turns 27
Singer Simon Le Bon turns 59
Happy Birthday to all October 27th babies!