Lord Mayor's Show

Origins of the Show The Lord Mayor's Show has its roots in an early mediæval power play, as bad King John fails to get London on his side and his Barons use the City as a base from which to continue their rebellion.
Calamities and obstructions Despite the many challenges of running a mediæval procession through modern London, in peace and war the Lord Mayor’s Show has only been cancelled twice in 200 years.
Art and literature The Lord Mayor’s Show has inspired many writers over its eight centuries, from Pepys (who was annoyed) and Shakespeare to Hitchcock and Fleming, and appears in some of the world’s great paintings.

And also The wartime shows Dates and routes Dick Whittington Gog and Magog