'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 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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You burn 26 calories in a one minute kiss.
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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