Anno Domini isn't "fairly arbitrary latin" it is very meaningful. CE doesn't stand for Christian Era, it stands for Common Era. There also is not a year 0, it g

Anno Domini isn't "fairly arbitrary latin" it is very meaningful. CE doesn't stand for Christian Era, it stands for Common Era. There also is not a year 0, it goes from 1BCE to 1CE. Year zero probably doesn't exist because it doesn't make sense for how we count things, you don’t say "it is the 0th year of the common era." the astronomical year numbering system actually does use year zero but they also use negative years rather than BCE notation.