Juventus Nation citizens will be celebrating the world over on 1 November 2015.
The answer is simple: the Old Lady of Italian football will turn 118 on Sunday, and to mark the occasion, we're asking Bianconeri everywhere to join the party for our first official public holiday!
Wherever you are on the big day and whatever you're doing, you've got just two things to remember:
a) Wear your Juventus jersey with pride (preferably black and white but any will do!)
b) Post your photos and birthday wishes on our official Facebook event page as well as via the usual methods using the hashtag #JuventusDay ⚪⚫.
Here's a bit of inspiration to get you started...