It's National Siblings Day -- Here's what you need to know

Story highlights

  • National Siblings Day is observed April 10
  • It was founded by a New Yorker who lost her siblings at a young age

(CNN)Time to hug your brothers or sisters and let them know how much you appreciate them. Sunday is National Siblings Day!

Each year on April 10, this day is observed to to honor the bonds between brothers and sisters. New Yorker Claudia Evart founded this 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.
"Siblings Day follows the spirit of Mother's Day and Father's Day -- a great American tradition and celebration of family-unit values," the organization's website says. "It is an uplifting celebration honoring people who have shaped our values, beliefs and ideals."
    It isn't an official national recognized holiday, but the Siblings Day Foundation is actively petitioning the White House to issue a presidential proclamation.
    There are even Hallmark cards you can pick up to celebrate the occasion.
    Thousands of social media users have posted photos with their siblings using the hashtag #NationalSiblingsDay.
    Products and companies joined in on the trend.
    Dodge posted a photo of new and old Challengers with the caption "Big and lil bro unite #NationalSiblingsDay."