On this day in History - April 27

1539 – Official founding of the city of Bogotá, New Granada (nowadays Colombia), by Nikolaus Federmann and Sebastián de Belalcázar.

1861 – American President Abraham Lincoln suspends the writ of habeas corpus.

1967 – Expo 67 officially opens in Montreal, Quebec, Canada with a large opening ceremony broadcast around the world. It opens to the public the next day.

1986 – The city of Pripyat and surrounding areas are evacuated due to the Chernobyl disaster.

2006 – Construction begins on the Freedom Tower (later renamed One World Trade Center) in New York City.