The YouTube Channel Kurzgesagt has proposed a calendar based on the 'Human Era' (HE) instead of before/after christ format.
It's based on the first monument of large-scale human cooperation (building a temple in modern-day turkey) and is quite elegant in my opinion. It 'simply' adds 10.000 years to the calendar we're all already used to. :)
Behave by Robert Sapolsky. It's an excellent book if you're trying to understand why the people around you are like.. well, that way. But if you didn't study neuroscience, you'll likely have to re-read it to get at least the most important points to stick.
There are alternatives like ..not sure what it's called in english. Mastika? Mastiha? It's a tree resin from the mediterranean that's been used for that weird greek rezina wine. It's an acquired taste, but I personally really like it.
Not malitious - this is a case of chaotic good. If it's funny and harms noone, roll with it!