'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
Speed dating was invented by a Rabbi in 1999.
45
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
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
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
For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
41
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212