Valentine's Day is almost here, but it wasn't always the heart-filled, card-giving, chocolate-gifting holiday we know today. Here's everything you should know about the history of the beloved ...

Valentine's Day has long been celebrated as a day of romance filled with red roses, heart-shaped candies and chocolate boxes. Here are 25 trivia facts you didn't know about Valentine's Day.

Notorious St. Valentine's Day Massacre in Chicago In 1929, arguably the most brutal gangster murders of all time took place on Feb. 14 inside a garage in Chicago's Lincoln Park.

It was around 1913 that Valentine's Day literally became a Hallmark holiday. The card maker started to mass-produce valentines, and from that point, romance and commercialism went into overdrive.

Saint Valentine's feast could have been a replacement for Lupercalia, but Lenski said there's no hard proof of this. A lot about this day is very mysterious.

For years, a rumor has circulated that greeting card companies invented Valentine's Day, which falls yearly on Feb. 14. The idea gained traction in pop culture due to a line in the 2004 film ...

These days, Valentine's Day is not just celebrated in the United States, but in Canada, Mexico, the United Kingdom, France, and Australia, too. February 14 is a way millions across the globe ...