Thanks for the link to the caganer!
Holy crap, that is amazing.
[nb. this notation is (without red ink?) unsuitable for dates before the Age of Pisces]
I mentioned "Age of Pisces" just because it seriously annoys me that years go from 1 BC to 1 AD with no 0. (inspired by: https://news.ycombinator.com/item?id=38761574 )