Coronation of George VI
From Tardis Wiki, the free Doctor Who reference
The Ninth Doctor was photographed at the coronation of King George VI; this evidence led Daniel Roberts to be sceptical of the claims that people were seeing the Doctor in the 21st century, as documented on the whoisdoctorwho.co.uk website, as, by Daniel's workings out, would make the Doctor over a hundred years old, which he believed was "impossible". (PROSE: Have You Seen This Man?)
Behind the scenes
King George VI was crowned alongside his queen consort Elizabeth on 12 May 1937.
