Queen celebrates her 91st birthday

Today is an extremely important date for the British Royal Family because of Her Majesty, Queen Elizabeth II is turning 91 years old.

Artillery gun salutes in Hyde Park and at the Tower of London will be the only formal ceremony to mark her birthday.

Thank you to the @IrishGuardsBand for celebrating The #QueensBirthday today during Changing the Guard at Buckingham Palace today. They will be fired by the King's Troop Royal Horse Artillery and the Honourable Artillery Company.

— She is the world's longest-reigning living monarch since the death of Thailand's King Bhumibol Adulyadej past year. However, her health and age didn't stop her from becoming the longest serving British monarch in 2015, after breaking the previous record of 63 years, which was held by her great-great-grandmother Queen Victoria.

While it eventually appeared to be a case of nothing more than tomfoolery, with the Queen present it was an incident the course managers could have done without.

How does she spend her actual birthday?

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The Queen, who celebrated her Sapphire Jubilee in February, gets two birthdays, because she's royal and also because the weather in the United Kingdom is iffy at best.

Elizabeth was born on April 21, 1926 in Bruton Street in central London at a time when Calvin Coolidge was the US President and Joseph Stalin had just taken control in the Soviet Union.

The tradition was started by King George II in 1748 so that there would be even more reason to celebrate.

This family was the royal family, and this girl was Queen Elizabeth II. The Queen dubbed 1992 her "annus horribilis" after the marriages of three of her four children broke down and Windsor Castle was badly damaged in a fire. She didn't also comment on the controversial invitation of US President Donald Trump by Prime Minister Theresa May.

As a lifelong horse lover and passionate owner and breeder, the Queen - along with the Princess Royal - spent the day at Newbury Racecourse, where her thoroughbred Maths Prize was running.