-50

Today is the -50 th anniversary of the first meeting between a Human and a Vulcan.

The First Contact took place on the evening of April 5, 2063, when a Vulcan survey ship, the T'Plana-Hath, having detected the warp signature of the Phoenix, touched down in Bozeman, central Montana, where they met with the Phoenix's designer and pilot, Zefram Cochrane. This event is generally referred to as the defining moment in Human history, eventually paving the way for a unified world government and, later, the United Federation of Planets. The event also became an annual holiday called First Contact Day.  (source:  Some article)