This week Queen Elizabeth is set to become the longest reigning Queen in history.
On September 9th 2015, the British monarch will become the longest reigning royal-after being on the thrown a massive 63 years, seven months and two days.
The previous record is held by her great-great-grandmother, Queen Victoria.
Weve collated the best photographs of her life to celebrate the momentous occasion.
The little princess, age 7, posing next to her sister, Margaret.