10 Random Things About Valentine's Day You Didn't Know

In Victorian times, they thought it was bad luck to sign a Valentine's Day card.

About 3% of pet owners apparently give gifts to their pets on February 14th.

In 1537, King Henry VII of England officially made February 14th Valentine's Day.

Due to the number of cards sold, Valentine's Day is considered the 2nd biggest card holiday of the year.

Over $1 billion is spent on chocolate in the U.S. for Valentine's Day.

Due to the significance of the color red, symbolizing romance, red roses have become the most popular flower of the holiday.

Most Valentine's Day cards are given to teachers!

About 220,000 marriage proposals occur each year on Valentine's Day.

In the 1800s, Cadbury began the tradition of giving chocolates in heart-shaped boxes on Valentine's Day.

Hallmark's first Valentine's Card was made in 1913, centuries after the holiday was first declared.