(KGTV) — It's commonly believed Valentine's Day was invented by greeting card companies to increase sales.
But, while they've certainly made a mint from it, that is fiction.
Valentine's Day was around long before mass-produced greeting cards were introduced in the 1860s, and Hallmark didn't get into the act until 1913.
If you're wondering, Valentine's Day is the second biggest day of the year for sending greeting cards, behind Christmas.
Mother's Day is the third.
