Afterwards, nine bands and 150 choir singers performed an Olympic Hymn, composed by Spyridon Samaras, with words by poet Kostis Palamas. Thereafter, a variety of musical offerings provided the backgrounds to the Opening Ceremonies until 1960, since which time the Samaras/Palamas composition has become the official Olympic Anthem (decision taken by the IOC Session in 1958). Other elements of current Olympic opening ceremonies were initiated later: the Olympic flame was first lit in 1928, the first athletes' oath was sworn at the 1920 Summer Olympics, and the first officials' oath was taken at the 1972 Olympic Games.