72 songs written by 150 songwriters have won the Eurovision Song Contest, an international song competition organised annually by the European Broadcasting Union (EBU). The contest, which has been broadcast every year since its debut in 1956, is one of the longest-running television programmes in the world. The contest's winner has been determined using numerous voting techniques throughout its history; centre to these have been the awarding of points by juries or televoters. The entry awarded the most points is declared the winner. The first contest was not won on points, but by votes, and only the winner was announced.