Oh no it isn’t a recent invention. The pantomime — the dame, the principal boy, the shouting — is Italian street theatre that Britain adopted three hundred years ago and refuses, magnificently, to give back.
Italian roots
The ancestry runs to sixteenth-century commedia dell’arte — travelling Italian companies improvising physical comedy around stock characters. When Italian performers brought the style to Britain in the early eighteenth century, the theatre impresario John Rich built it into a new kind of show, the Harlequinade, staging comic spectaculars that established a Christmas-season habit at Covent Garden.
The Victorians build the machine
It was the Victorians — the same people assembling most of the modern Christmas — who fixed the format we would recognise: fairy-tale plots, the principal boy played by a woman, songs, topical jokes, and the audience as participant. The dame descends from a long stage tradition of comic cross-dressing, but her modern form was effectively created by the music-hall star Dan Leno, who made the role a national institution in the 1880s and 90s.
Source: Historic England and Sky History
The one theatre where the audience works
Panto survives because it inverts the theatre’s rules: shouting is required, the fourth wall is a running joke, and the worst pun gets the biggest cheer — the same communal-groan mechanics as the cracker joke, staged professionally. It is also, for millions of British children, the first theatre they ever see, which is quite a first impression.
Dame-grade knitwear
The dame’s costume philosophy — commit utterly, subtlety is cowardice — is also the winning strategy at a jumper competition, as covered here. The loudest things in the catalogue, in her honour:
