Whether you love or hate the so-called "Hallmark holiday," exchanging flowers, gifts, and greeting cards has been an annual Valentine's Day tradition for hundreds of years.
The holiday's romantic concept became popular in 17th-century England, and advancements in the printing press gave way to mass-produced love notes in the 19th-century. The Greeting Card Association estimates that 145 million Valentine's Day cards are sent every year — and that's not even including classroom valentines.
See also: 12 Pieces of Vintage Olympic Garb to Win Hipster Gold
Though, we've come a long way from the cutesy, flowery and sometimes cheesy cards of years' past. Let's just say, they definitely trump the Justin Bieber valentines we have today.
Take a look at some of the vintage valentines lovers have exchanged over the years.