'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 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.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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One in five long-term love relationships began with one or both partners being involved with others.
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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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Men who kiss their wives in the morning live five years longer than those who don't.
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Men fall in love faster than women do.
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