The DJ was not invented by New York’s Tuxedo Club in 1886 (letter, Nov.14). One of the club’s members, James Potter Brown, was introduced to it in England by its creator, the Prince of Wales, later Edward VII. The aim was to enable him to dispense with full evening dress while at sea during the first royal visit to India in 1875. There was no relaxation of other formalities. Sweating in temperatures of 100 F, the party rose to toast Queen Victoria at the end of each meal while the band played the National Anthem.