In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Speed dating was invented by a Rabbi in 1999.
45
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Men who kiss their wives in the morning live five years longer than those who don't.
1k
40% of people who are rejected in romantic love slip into clinical depression.
72
In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
27
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103