The main international event associated with the island is the Isle of Man Tourist Trophy race, colloquially known as "The TT", which began in 1907. It takes place in late May and early June. The TT is now an international road racing event for motorcycles, which used to be part of the World Championship, and is long considered to be one of the "greatest motorcycle sporting events of the world". Taking place over a two-week period, it has become a festival for motorcycling culture, makes a huge contribution to the island's economy and has become part of Manx identity. For many, the Isle carries the title "road racing capital of the world".