Wearing red increases attraction.
30
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
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
Parents receive 1 out of every 5 Valentines.
20
Couples' personalities converge over time to make partners more and more similar.
235
When dragonflies mate, their tails form a love heart.
22
'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
255