From Wikipedia

Camelot is a musical with music by Frederick Loewe and lyrics and a book by Alan Jay Lerner. It is based on the legend of King Arthur as adapted from the 1958 novel The Once and Future King by T.H. White.

The original 1960 production, directed by Moss Hart with orchestrations by Robert Russell Bennett and Philip J. Lang, ran on Broadway for 873 performances, winning four Tony Awards. It starred Richard Burton as Arthur, Julies Andrews as Guenevere, and Robert Goulet as Lancelot.

It spawned several notable productions including four Broadway revival and a 1967 film adaption. The 2023 Broadway revival features a revised book by Aaron Sorkin.

The musical has become associated with the Presidency of John F. Kennedy, which is sometimes called the "Camelot Era", because of an interview with Jackie Kennedy in which she compared her husband's presidency to King Arthur's reign, specifically mentioning his fondness for the musical and particularly the title song's closing lyrics, which end Camelot.

Camelot is a legendary castle and court associated with King Arthur. Absent in the early Arthurian material, Camelot first appeared in 12th-century French romances and, since the Lancelot-Grail cycle, eventually came to be described as the fantastic capital of Arthur's realm and a symbol of the Arthurian world.

Medieval texts locate it somewhere in Great Britain and sometimes associate it with real cities, though more usually its precise location is not revealed. Most scholars regard it as being entirely fictional, its unspecified geography being perfect for chivalric romance writers. Nevertheless, arguments about the location of the "real Camelot" have occurred since the 15th century and continue today in popular works and for tourism purposes.