The Handel festival or "Commemoration" took place in Westminster Abbey between 26 May and 5 June 1784, to commemorate the twenty-fifth anniversary of the death of George Frideric Handel in 1759.^[1]

The commemoration was organized by John Montagu, 4th Earl of Sandwich^[2] and the Concerts of Antient Music and took the form of a series of concerts of Handel's music, given in the Abbey by vast numbers of singers and instrumentalists.

Above Handel's own monument in the Abbey, there is a small additional tablet to record the commemoration. An account of the commemoration was published by Charles Burney in the following year.^[3]

The commemoration established a fashion for large-scale performances of Handel's choral works throughout the nineteenth century and much of the twentieth. E.D. Mackerness described it as "the most important single event in the history of English music".^[4]

Five further Handel commemorations followed over the next seven years - in 1785, 1786, 1787, 1790 and 1791, the last with over 1,000 participants and an estimated audience of 2,200 people, including Joseph Haydn.^[1] Then in 1834 there was another larger scale commemoration, the Royal Musical Festival also at Westminster Abbey, this time with 625 participating musicians (223 instrumentalists, 397 choral singers and five soloists), and an audience of 2,700.^[1]

The 100th anniversary of Handel's death was commemorated at the Crystal Palace in 1859 on a similarly large scale. The festival included complete performances of The Messiah, the Dettingen Te Deum, and Israel in Egypt, along with excerpts from Belshazzar's Feast and Judas Maccabaeus.^[5]