Astronomers of course have the best solution - just count days.
Dates in the Gregorian calendar in the Western world have always used the era designated in English as Anno Domini or Common Era, but over the millennia a wide variety of eras have been used with the Julian calendar. But moreover, there is only one letter of difference between the two terms, whereas with BC and AD, the terms are clearly different and I find it easier to distinguish! BCE/CE usually refers to the Common Era (the years are the same as AD/BC).Most organizations and political entities, for the sake of convenience, have adopted the Western calendar, but "Anno Domini"/"Before Christ" are meaningless terms.Anyway, you don't need to worry, BC/AD has not lost at all to the metric system or Kwanzaa, it is still very much what is used and recognized (but I haven't looked at any high school history books lately).Note that the labeling BC/AD was introduced in the 6th century....Christianity was spread through the Roman Empire by the early followers of Jesus so year 1 will always have implication of the birth of Christianity no matter what letters your choose place after number; so I don't understand how changing letter removes the connection to Christianity birth date. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).Would you like to answer one of these unanswered questions instead?After all, there are all sorts of inconsistent and illogical stylistic elements in English usage.But when you take into account that the old meanings are widely believed (even by Christians) to be actually wrong, you now have a convention that's actively creating confusion.Browse terms related to - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A/B testing, at its simplest, is randomly showing a visitor one version of a page- (A) version or (B) version- and tracking the changes in behavior based on which version they saw.(A) version is normally your existing design ("control" in statistics lingo); and (B) version is the "challenger" with one copy or design element changed.