CE stands for "Common Era." It is a relatively new term that is experiencing increased usage and is expected to eventually replace AD. The latter is an abbreviation for "Anno Domini" in Latin or "the year of the Lord" in English. The latter refers to the approximate birth year of Yeshua of Nazareth (a.k.a. Jesus Christ). CE and AD have the same and value. 2004 CE = 2004 AD. The word "common" simply means that it is based on the most frequently used calendar system: the Gregorian Calendar. .

BCE stands for "Before the common era." It is expected to eventually replace BC, which means "Before Christ," or "Before the Messiah." BC and BCE are also identical in value. Most theologians and religious historians believe that the approximate birth date of Yeshua of Nazareth (Jesus) was in the fall, sometime between 7 and 4 BCE, although we have seen estimates as late as 4 CE and as early as the second century BCE.

donc la reponse est..avant notre ere....avec les accents de rigueur

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Note added at 2 hrs (2008-03-11 21:19:15 GMT)
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“Reflections on Worlds Before Our Own”
Brad Steiger
One of the most heretical theories that I suggest in Worlds Before Our Own is that the cradle of civilization might possibly have traveled from the so-called New World to the Old. Now, in December 2007, years after Ruth Shady Solis found the ancient city of Caral, Peru, scientists have accepted the carbon dating of 2,627 B.C.E., thereby establishing the civilization in South America to be much older than the Harappa Valley towns and the pyramids of Egypt. Caral must now be recognized as “the mother of all civilizations,” the missing link of archaeology, the Mother City.

there's a comma here

BCE means before the common era, used to replace BC Before Christ

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Note added at 24 mins (2008-03-11 18:54:10 GMT)
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in French "de notre ère"

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Note added at 3 hrs (2008-03-11 22:27:16 GMT)
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Oops: "avant notre ère" ! That's what you get for writing too quickly.