Before she passed away in September 2022 at the age of 96, the Queen was the monarch who had ruled Britain the longest.
Queen Victoria, who ruled for 63 years and lived to the age of 81, was surpassed by her as the monarch with the longest reign in 2015.
She was also the oldest female monarch to have ever ruled the world.
In 1952, when Elizabeth was only 25 years old, her father passed away, making her the sovereign.
The Queen typically spent her actual birthday alone, with the exception of when it was a milestone celebration.
She celebrated both her actual birthday and her 70 years as monarch at the Platinum Jubilee.