In a temperature-controlled room in a suburb of Reading, the basis of the BBC’s existence is kept in a flat, square, faded navy case, the size of a large pizza box. Inside is a stack of vellum – calfskin, pounded until it forms a milky and translucent paper that is supposed to last for thousands of years. The queen’s red wax seal is secured to its base with red and gold cord. The pages are strapped down with two strips of white elastic, more PE kit than Buckingham Palace.
The document is unique. Like hundreds of other British organisations, the BBC was founded via a Royal Charter, granted by the monarch of the day. But unlike Oxford colleges, the British Film Institute, or the Worshipful Company of Makers of Playing Cards, the BBC was given an expiry date. When the British Broadcasting Corporation was founded, in the 1920s, radio was seen as such an uncertain, risky technology that the government only gave it a 10-year guarantee, after which it would have to seek a new charter.
