Triple Seven

:"Triple Seven is also a common name used for the Boeing 777 airliner, and the M777 howitzer".

Triple Seven (or Triple 7, Three Sevens, Three 7s, T7, 777 or 7-7-7) is a common winning line in simple slot machines, as common as 3 gold bars, 3 gold bells or 3 red cherries. Being dealt three 7 cards in Blackjack is almost a sure win, as they would add up to 21. Seven is considered a lucky number in Western culture.

The date of 7 July, 2007 (7-7-07), being considered a "lucky day", marked the celebration of many weddings, including celebrities such as Tony Parker and Eva Longoria. [http://www.thebizofknowledge.com/2007/06/7707_the_most_popular_wedding.html] July 7, 2007 was also the date of the Live Earth concert to raise awareness for global warming.

In Las Vegas, Nevada, USA, a city closely associated with gambling, there was an unusually large number of marriages on 7 July 2007. [http://www.lvrj.com/news/8378147.html] .