The history behind Valentine's Day

Today is dedicated to love, and it's going to be celebrated around the world. 

Some of you are probably making a Valentine's breakfast as we speak, or maybe you have dinner plans with the one you love.

But where did this day come from? And why are we so divided over it?

Associate Professor of popular media and cultural history Lorna Piatti-Farnell, spoke to The AM Show.

Watch the video.