context: The Wimbledon Championships, or Wimbledon in general, is the oldest tennis tournament in the world, the most prestigious of the tournament. [1] [2] [3] [4] The tournament will be held at the All England Club at Wimbledon, in the suburbs of London, from 1877. It is one of four Grand Slam tennis tournaments, the only one still held on the grass, the original surface of the sport, which was named for lawn tennis.
question: When was the first Wimbledon Tennis Tournament opened?
answers.text: 1877