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This is an updated version of a story that first published in 2016.
(CNN)Time to hug your brothers or sisters and let them know how much you appreciate them. Today is National Siblings Day!
The unofficial holiday is observed each year on April 10 to honor the bonds between brothers and sisters.
New Yorker Claudia Evart founded the day after she lost both her siblings early in life, according to the Siblings Day Foundation. She chose April 10 because that was the birthday of her late sister, Lisette.
Photos: Famous Hollywood siblings
Photos: Famous Hollywood siblings
Cody Walker, Paul Walker's brother, is following in his older sibling's footsteps by becoming a movie actor. Cody Walker was a stand-in for his brother, who died in an auto accident, in "Furious 7." Click through to see more Hollywood siblings.
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Photos: Famous Hollywood siblings
The Kardashian family has made a name for themselves through their namesake reality show, "Keeping Up with the Kardashians." Pictured, from left, television personalities Rob Kardashian, Kim Kardashian, Kourtney Kardashian, Khloe Kardashian, Kylie Jenner, mom Kris Jenner and Kendall Jenner.
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Photos: Famous Hollywood siblings
Sisters Zooey Deschanel, left, of "The New Girl" and Emily Deschanel of "Bones" hold hands at the Emmy Awards in 2013.
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Photos: Famous Hollywood siblings
From left, Keenen Ivory Wayans, Shawn Wayans, Marlon Wayans and Damon Wayans have built a comedic dynasty in Hollywood with shows like "In Living Color" and "The Wayans Bros." as well as the film spoofs "I'm Gonna Git You Sucka" and "Don't Be a Menace to South Central While Drinking Your Juice in the Hood."
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Photos: Famous Hollywood siblings
The Arquette siblings could have their own basketball team, but acting is their forte. From left are Academy Award winner Patricia, Rosanna, Alexis, Richmond and David Arquette.
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Photos: Famous Hollywood siblings
Mary-Kate, right, and Ashley Olsen, left, had early success sharing the role of Michelle Tanner on the sitcom "Full House." Elizabeth Olsen was a child actor, too, appearing in Mary-Kate and Ashley's movies. She drew praise as an adult for her breakout role as the titular character in the film "Martha Marcy May Marlene."
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Photos: Famous Hollywood siblings
Andrew Wilson, left, poses with his brothers, actors Owen, center, and Luke, at the premiere of the "The Wendell Baker Story." Andrew and Luke co-directed the film, which also starred Owen. Owen and Luke have appeared in several films together, including "Bottle Rocket" and "The Royal Tenenbaums."