1. About 1 billion Valentine's Day cards are exchanged in US each year. That's the largest seasonal card-sending occasion of the year, next to Christmas. Women purchase 85% of all Valentines.

2. If an individual thinks of five or six names considered to be suitable marriage partners and twists the stem of an apple while the names are being recited, then it is believed the eventual spouse will be the one whose name was recited at the moment the stem broke.

3. In the Middle Ages, young men and women drew names from a bowl to see who their valentines would be. They would wear these names on their sleeves for one week. To wear your heart on your sleeve now means that it is easy for other people to know how you are feeling.

4. Teachers receive the most Valentine's Day cards, followed by children, mothers, wives, and then, sweethearts. Children between ages 6 to 10 exchange more than 650 million Valentine's cards with teachers, classmates, and family members.

5. Verona, the Italian city where Shakespeare's play lovers Romeo and Juliet lived, receives about 1,000 letters every year sent to Juliet on Valentine's Day.

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