The Proms, more formally known as the BBC Proms or Henry Wood Promenade Concerts presented by the BBC, is an eight-week summer season of daily orchestral classical music concerts and other events held annually, predominantly in the Royal Albert Hall in central London, England, UK. Founded in 1895, seasons now consist of concerts in Albert Hall, chamber music concerts at Cadogan Hall, additional Proms in the Park events across the UK on the Last Night of the Proms, and associated educational and children's events. By 2009 the total number of concerts had reached a hundred. The season is a significant event in British culture. In classical music, Jiří Bělohlávek described the Proms as "the world's largest and most democratic musical festival".
Prom is short for promenade concert, a term which originally referred to outdoor concerts in London's pleasure gardens, where the audience was free to stroll around while the orchestra was playing. In the context of the BBC Proms, promming refers to the use of the standing areas inside the hall (the arena and gallery) for which ticket prices are much lower than for the seating. Proms concert-goers, particularly those who stand, are sometimes referred to as "prommers" or "promenaders". Prommers can buy full-season tickets instead for guaranteed entry to every concert in the season (until 20 minutes before the concert is due to start), although not the assurance of a particular standing position. Some prommers are particularly assiduous in their attendance.
Promenade concerts had existed in London's pleasure gardens since the mid 18th century, and indoor proms became a feature of 19th century musical life in London from 1838, notably under the direction of Louis Antoine Jullien and Sir Arthur Sullivan. The annual series of Proms continuing today had their roots in that movement. They were inaugurated on 10 August 1895 in the Queen's Hall in Langham Place by the impresario Robert Newman, who was fully experienced in running similar concerts at His Majesty's Theatre. Newman wished to generate a wider audience for concert hall music by offering low ticket prices and an informal atmosphere, where eating, drinking and smoking were permitted to the promenaders. He stated his aim to Henry Wood in 1894 as follows: