'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.
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In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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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.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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Speed dating was invented by a Rabbi in 1999.
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