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Before Queen Elizabeth became the longest-reigning British monarch in history, she was Princess Elizabeth a truck mechanic in the women's branch of the British army, avid horseback rider, and lover of corgis .
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Here are 30 vintage photos of Queen Elizabeth before she ascended the throne in 1952.
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In 1927, when Queen Elizabeth was just a baby, she rode around Windsor Castle with her cousin Gerald Lascelles.
AP
The Royal Tournament was a pageant-style celebration of the armed forces .
Len Puttnam/Staff/AP
She rode with Queen Mary (left) and Elizabeth Bowes Lyon, the Duchess of York (right).
AP
Queen Elizabeth adjusted her stockings upon arriving at Olympia station in London in 1933.
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Princess Elizabeth was photographed leaving a dentist's office in West End after an appointment in 1934.
AP
From left to right standing: King George V, Princess Nicholas of Greece, Princess Marina, the Duke of Kent, Queen Mary and Prince Nicholas of Greece. Seated front left is Queen Elizabeth, front right is Lady Mary Cambridge.
AP
She attended with her little sister, Princess Margaret Rose, and her mother, Elizabeth, the Duchess of York.
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She rode horses with a riding master in Windsor Great Park in 1935.
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Her birthday presents included a diamond bracelet and silk stockings.
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She took them along to Scotland in 1935.
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Queen Elizabeth has had more than 30 corgis since 1945.
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Queen Elizabeth held the Pembrokeshire Corgi while Princess Margaret fed the dog a biscuit.
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Queen Elizabeth waved to the crowd while leaving Buckingham Palace in 1937.
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They waved to the crowd after attending a Jubilee service at St. Paul's Cathedral.
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She knitted garments for the poor, contributed funds to purchase cigarettes for the armed forces, and attended dances and programs of evacuated children.
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She wore the uniform of a first aid patrol leader in Windsor Great Park in 1943.
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She took a driving course at the ATS Center to become an officer.
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Queen Elizabeth received a clock as a gift from the camp where she trained in 1945.
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The Women's Land Army helped women work in agriculture when men joined the armed forces during both World Wars.
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The Earl of Athlone, Chancellor of London University, was her great uncle.
Pool/AP
Buckingham Palace has 775 rooms .
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Her books contained stamps sent from around the world.
Eddie Worth/AP
In the background are the Drakenberg Mountains.
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They first met at a wedding when they were children.
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The ceremony was held at Westminster Abbey.
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They honeymooned at the Broadlands House in Hampshire.
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She wore a hat trimmed with a veil for the occasion.
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The couple lived in Malta for the first few years of their marriage, where Prince Philip was stationed with the Royal Navy.
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Only married members of the royal family are allowed to wear crowns or tiaras.
Worth/AP
She's pictured with Prince Philip, Prince Charles, and Princess Anne.
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