Since the entire human population is not all Christians, the designation "common era" was brought into use to respect a more secular, that is to say, a non-Christ centered accounting of history. This is made ironic by the fact no one can even pinpoint exactly when Jesus was born. How loudly would Christendom howl if the calendar were based on BM, Before Mohammad? At least there is tangible evidence he actually existed.
The BCE designation uses the year-numbering system that was introduced by 6th-century Christian monk Dionysius Exiguus. It was this monk who started what is known as the Anno Domini designation or AD. Read on from europeanhistory.about.com/od/referenceencyclopedia/g/glbce.htm.
Anno Domini is Latin and means: in the year of the Lord. Anno Domini Nostri Jesu Christi is Latin and means: in the year of our Lord Jesus Christ. It is pronounced: ah-noh DOH-mee-nee noh-stree yay-soo kree-stee. I hope this is helpful. Frank
Christianity counts time from what is supposed to be the year of Jesus birth, anno Domini, " before Christ." Moslems count time from the year Mohammed fled Mecca, A.H., which was A.D. 622. The Jews count time from the beginning of creation, anno minding, A.M., "in the year of the world." (Webster) To avoid implied recognition of Jesus as Lord or Christ,? Particularly among the Jews avoid the abbreviations B.C.and instead use B.C.E., " before the common era,". and C.E. common era. Dr Edgar Frank , in his book Talmudic and Rabbinical Chronology (1965), deliberately avoids discussing the following all-important controversial factors regarding the Jewish traditional date. Much more info on this subject, Goggle B.C.E. And C.E., A.D., A.H., B.C. Much to much to share here on Ask. Com. If you really want to know more this will require some time out of your schedule.