"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Turning 21 is a huge milestone in a young person's life, so when the big day comes around, it's time to ...

This is the incredible moment an autistic man discovered he had been sent more than 10,000 cards and gifts for his 21st birthday from well-wishers across the globe. Last month, James Weir's sister ...

A British lad experienced the surprise of his life upon opening a card on his 21st birthday, revealing that he had been unwittingly caught up in a family prank for the last three years. Sarah Austin ...