Happy Birthday, Queen Elizabeth!

15

Elizabeth with Charles at 6 months. PC: NARA

15

Off on their honeymoon. PC: NARA

15

The Queen at the Chelsea Flower Show, 2015 – PC:: Royal Horticultural Society

15

Elizabeth and Philip before Marriage. PC: NARA

15

The Royal family at Buckingham Palace, London, on the day of Prince William's christening. Standing (from left): the Prince of Wales and the Duke of Edinburgh; seated (from left): Queen Elizabeth II, the Princess of Wales holding Prince William, and the Queen Mother.

15

Queen Elizabeth II and the Duke of Edinburgh wave to the crowds before a fly-past by the RAF, on the balcony at Buckingham Palace following the Trooping the Colour parade, London. - PC: John Stillwell/PA Wire

15

LONDON, ENGLAND - OCTOBER 16: Queen Elizabeth II visits the Blood Swept Lands and Seas of Red evolving art installation at the Tower of London on October 16, 2014 in London, England. 888,246 poppies will be planted in the moat by volunteers with the last poppy being planted on the 11th November 2014. Each poppy represents a British or Colonial fatality in the First World War. The poppies are for sale with 10% plus all net proceeds going to six service charities. (Photo by Chris Jackson - WPA Pool /Getty Images)

15

Princess Elizabeth, aged 14 years old, is photographed in the park at Windsor Castle. April 20, 1940. - PC: NARA

15

The young Princess Elizabeth of England on her 6th birthday. April 21, 1932. PC: NARA

15

Princess Elizabeth speaks on the occasion of her 21st birthday. April 21, 1947 - PC: NARA

15

October 20, 1957 -- Queen Elizabeth II escorted by Vice-President Richard Nixon during her state visit to the United States. Photo: Abbie Rowe

15

October 17, 1957 -- Queen Elizabeth II and Prince Philip are greeted by President and Mrs. Eisenhower during the royals state visit to the United States. Photo: Abbie Rowe

15

The Queen and her future Kings.

15

Credit: Kylie Ellway/istock