Queen Elizabeth II made history on Monday as the first British monarch to rule for 65 years.
The event, dubbed a "Sapphire Jubilee," was marked with a 41-gun salute and a 62-gun salute in London.
Buckingham Palace also released a photo of the queen from 2014 in which she wears a suite of sapphire jewelry given to her by her father as a wedding gift in 1947. She became queen five years later and became the longest-serving monarch in British history in 2015.
WATCH | Here's the 41-gun salute in London's Green Park.
However, the queen won't be publicly celebrating. Monday also marks the anniversary of the death of her father, King George VI, in 1952. She will spend the day at her private estate in Norfolk, USA Today reports.
This GIF shows how the queen has changed during her reign.
Twitter was full of praises for the queen.
The Associated Press contributed to this report.
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