Queen Elizabeth II, who last year became the longest-reigning British monarch, will notch another milestone Thursday when she turns 90. The Queen, who was born April 21, 1926, was set to celebrate both this week on her actual birthday and in June on her official one. England is sure to revel alongside her.

The party had already started: On Wednesday, the Queen visited the offices of the Royal Mail, the national postal service, which turns 500 this year. She then watched a children's choir performance at Alexandra Gardens. Thursday, she was scheduled to "undertake a walkabout" in Windsor and later light a beacon to match hundreds due to burn across the country in her honor, according to the Palace website.

If you want to join the fun, read these facts about the Queen on her birthday, collected from EuroNews, the Independent, TIME and Royal Central:

She has been the head monarch of the United Kingdom since 1952.

She knows how to speak French and how to drive.

GettyImages-103032578 An undated picture shows the royal British couple, Queen Elizabeth II and her husband Philip, with their kids circa 1951. Photo: Getty Images

The Queen does not have a passport — she doesn't need one.

The first time she was on the cover of TIME, she was 3 years old.

She sent her first email in 1976. 

The Palace launched a YouTube channel in 2007.

GettyImages-145645405 Queen Elizabeth II attends a horse race at Longchamp racecourse outside Paris in May 1972. Photo: Getty Images

Her first tweet was in 2014. It read, "It is a pleasure to open the Information Age exhibition today at the @ScienceMuseum and I hope people will enjoy visiting. Elizabeth R."

The Queen technically owns the sturgeons, whales and dolphins in the waters around the U.K.

President Barack Obama once gave her an iPod.

Her nickname as a child was "Lilibet."

GettyImages-465867868 (1) Queen Elizabeth II, followed by her husband Prince Philip, walks up the stairs to the Tomb of the Unknowns in Arlington National Cemetery on May 14, 1991. Photo: Getty Images

Her corgis eat off of silver platters every day.

Her coronation was the first to be on TV.

She has more than 130 official portraits.

She was once gifted two sloths.

GettyImages-51971053 Queen Elizabeth II greets enthusiastic spectators outside Durban city hall, South Africa, in 1995. Photo: Getty Images

She once worked as a military mechanic. 

She has a private meeting with the prime minister every week.

She has about 30 godchildren. One of them is Charles Spencer, the brother of the late Princess Diana.

The Queen doesn't like meals served in the Buckingham Palace to have garlic. But she does love mangoes.

The Queen took a corgi on her honeymoon. She currently has two, Willow and Holly.

The Queen loves to watch horse racing — she's won more than 1,600 races. 

She has a personal bagpipe player.

In 1975, one of the Queen's representatives fired Australia's prime minister. 

GettyImages-146294138 Catherine, Duchess of Cambridge, and Queen Elizabeth II watch part of a children's sports event while visiting Vernon Park during a Diamond Jubilee visit to Nottingham on June 13, 2012. Photo: Getty Images