The monarch acceded to the throne on February 6 1952
As the Queen reaches 25,000 days on the throne, here are some of the events and milestones of her reign:
1952: George VI dies and Princess Elizabeth becomes Queen. Flood devastates the Devon village of Lynmouth. Mau Mau rising in Kenya.
1953: Sweet rationing ends in Britain. Queen Mary dies. Everest conquered on eve of the Coronation.
1954: Study links cancer to smoking. Crash grounds BOAC’s Comet aircraft. French defeated at Dien Bien Phu in Vietnam. Elvis releases his first record. Roger Bannister breaks the four-minute mile record.