麻豆社

It's something most, if not all of us use, the letter 'x' as a kiss.

But have you ever wondered where it comes from?

Turns out it's a practice that's older than you probably thought!

Marcel Danesi is Author of 'The History of the Kiss'...

If you've got a question for the Vicapedia, get in touch at viconair@bbc.co.uk