Queen Elizabeth II becomes the first British monarch to reach her Sapphire Jubilee today.
She became Queen of England on 6 February 1952 following the death of her father, King George VI.
The then 25-year-old, christened Elizabeth Alexandra Mary, was staying in a remote part of Kenya when she received the news.
She immediately flew back home to Britain as Queen, where she was greeted by Prime Minister Winston Churchill.
Her coronation took place on 2 June 1953, and was broadcast on television for the very first time.
The Queen spends the anniversary of her accession privately at Sandringham, honouring the memory of her father, and no events are planned to mark this landmark occasion.