It's Because some people are hallucinating, delusional or fraudulent liars, and I don't think it should have.
This wasn't the way to go about it, this just made you sound like one of those asshats from r/atheism.
You don't have to include a religion in your nation's history, but I want to.
My suggestion was changing AD to BCE and to be more specific on the other part, removing the part about year 0 being "birth of Jesus". So to make it clear: I suggest for all references to Christianity being removed from the timeline.
Sorry if it wasn't clear from my wording, I don't intend to ristrict people from inventing religions for their nations. I personally don't think that Earthly religions would fit our fictional nations very well, but that's just my opinion.
bla argues like those decisions in nation states but he only does one side
There are an infinite number of sides to a lot of questions, and equally an infinite number of wrong sides to them. If you ask for a single integer that equals 2 + 2, there is one correct answer, 4, and an infinite number of wrong answers you could come up with. Similarly, there are discussions about the origin of the life species. You can accept the theory of evolution, you can say someone created the universe 6000 years ago, you can say someone else created the universe 5 days ago. I simply don't see any reason to include all the wrong sides in my discussions.