Swimming in a Gown?! The Most Mariah Carey Moments from Mariah's World
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The late Princess of Wales's accomplishments are numerous: She worked to end the use of land mines and famously held the hand of an AIDS patient at a time when the disease was still stigmatized. Diana earned the moniker the "People's Princess" for being so real.
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PRINCESS KATE & PRINCE WILLIAM
Will and Kate have been working as a team for various causes since before their 2011 wedding, and have recently made championing mental health awareness and advocacy the cornerstone of their charity work.
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In the past few years, Harry's biggest undertaking has been the Invictus Games, a Paralympic-style event for veterans. He told PEOPLE in May that he hopes his work will help ease the loss of his mother to the people of the world. "When she died, there was a gaping hole, not just for us but also for a huge amount of people across the world," he said. "If I can try and fill a very small part of that, then job done. I will have to, in a good way, spend the rest of my life trying to fill that void as much as possible."
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QUEEN ELIZABETH II
In what way hasn't the Queen changed the world? Beyond her work with various causes and her place at the head of British monarchy for the better part of a century, she also landed her name in the record books when she surpassed Queen Victoria as the longest-reigning British monarch in history.
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PRINCESS GRACE OF MONACO
The American actress turned royal championed a variety of causes, from the Red Cross and women's health to children's aid and the arts. Years after her tragic death, her charitable legacy lives on through her Princess Grace Foundation.
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PRINCE ALBERT OF MONACO
Princess Grace's son — who received the Award for Excellence in National Stewardship at the 2015 Peter Benchley Ocean Awards — has made it his mission to help the environment.
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PRINCESS CAROLINE & PRINCESS STÉPHANIE OF MONACO
Not to be outdone, Grace's daughters each have a cause close to their hearts. For Caroline, it's AMADE Mondiale, the non-profit her mother founded to help children worldwide. Stéphanie uses her name for AIDS awareness, giving a speech on the topic at the UN earlier this year.
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No one can say that Beatrice doesn't work hard to support the causes close to her: In September, she completed a triathlon that involved running a half-marathon, swimming two miles, biking 87 miles and hiking a mountain to raise money for Big Change, a social impact accelerator that aims to help young people.
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Prince Andrew's youngest recently spoke out about modern-day slavery, working with the Salvation Army to visit a safe house for people who have been impacted. "I've had the chance to see firsthand what the Salvation Army can do for victims of trafficking and modern slavery," she said. "This year I went to visit a safe house and I was completely astonished by the work that they do and by the survivors who have come out of modern slavery."
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Until George V, no British monarch had ever spoken directly to his subjects. That all changed with the invention of the radio, which George V used to communicate with the masses for the first time from the British Empire Exhibition in 1924.
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PRINCESS MADELEINE AND QUEEN SILVIA OF SWEDEN
Madeleine, a mother, just helped launch an app that helps adults recognize, prevent and respond to child sexual abuse through the World Childhood Foundation, which her mother, Silvia, founded.
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LOUIS XVI OF FRANCE
Famously married to Marie Antoinette, it was under Louis XVI that the French monarchy fell to revolution, forever changing the country's path in history.
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QUEEN LETIZIA OF SPAIN
Among her favorite causes are research into rare diseases, education and support for the World Health Organization’s programs on nutrition.
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BHUMIBOL ADULYADEJ OF THAILAND
Everyone knows about Queen Elizabeth's big milestone: becoming the longest reigning monarch in British history. But Thailand's recently deceased king has one up on her: with 70 years and 126 days, he was the longest-serving head of state in the world when he died on Oct. 13, 2016.
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PRINCESS MARY OF DENMARK
Her eponymous Mary Foundation focuses on children and families on the edge of society, particularly those dealing with bullying, domestic violence and loneliness.
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LOUIS XIV OF FRANCE
If you've ever visited Versailles in France, you have Louis XIV to thank. The French "Sun King" transformed Versailles from a hunting lodge to one of the most elaborate palaces in the world — a title it still holds today. To boot, with a 72-year reign, he's still the longest reigning monarch in European history.
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QUEEN RANIA OF JORDAN
This September, the Jordanian royal issued a plea for help in dealing with the Syrian refugee crisis. The country, which borders Syria, has taken in 1.4 million refugees, and Rania asked other nations to help. "We have had a wave of refugees coming into Jordan. To date we have 1.4 million Syrians in Jordan — 630,000 of them registered refugees," she said. "A consensus in Europe, a holistic and cohesive policy towards dealing with the refugees, will encourage other nations in the world to be part of the solution — and not silent bystanders to what is unfolding."
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While his charitable contributions are questionable, there's no doubt Henry VIII changed the course of history. His break with the Catholic Church (in order to divorce his first wife, Catherine of Aragon) established the Church of England, still the official religion of the United Kingdom today.
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CROWN PRINCESS METTE-MARIT OF NORWAY
Mette-Marit has spent two years on a literary tour of Norway, sharing her love of books with locals. "I cannot imagine a life without books," she said. "Ever since I was a little girl I have enjoyed being read to and entering that special room that is fantasy. Reading — the images it creates in your mind and the feelings it evokes — has made me a better, wiser and more reflective person. But first of all, the stories have been my sanctuary. To me books have been home."
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PETER THE GREAT OF RUSSIA
He reigned a while ago — way back in the late 1600s and early 1700s. But it was his time on the throne that pushed Russia into a new direction, leading a "cultural revolution" that modernized the country's social and political systems, as well as expanding the country's borders to create the Russian Empire.
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PRINCESS SOFIA OF SWEDEN
The new mom's charity is all about play! Project Playground is all about "inspiring, motivating and engaging children and youth to seize their inner strength and potential through organized social activities and sports with focus on the individual," according to Royal Central.
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PRINCE GEORGE & (BONUS!) PRINCESS CHARLOTTE
Okay, so they haven't done much yet (besides make us gush with their cuteness and buy up British kids' clothes), we're sure there are only world-changing things to come from Britain's littlest royals.
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