In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Speed dating was invented by a Rabbi in 1999.
45
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Historically, sweat has been an active ingredient in perfume and love potions.
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
The average person will go on a date at least 100 times before they finally marry.
33
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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