Couples' personalities converge over time to make partners more and more similar.
235
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
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Speed dating was invented by a Rabbi in 1999.
45