Happy Birthday, Queen Elizabeth II! The British monarch turns 94 years old on April 21, 2020.
Check out the gallery above to see how Queen Elizabeth II has changed from her days as Princess Elizabeth, to ascending the throne in 1952, to today.
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Happy Birthday, Queen Elizabeth! See photos of Britain's longest reigning monarch through the years
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The Duke and Duchess of York at the christening of their daughter Princess Elizabeth in 1926.
