A History of the “Common Era” (BCE/CE) Dating System

I functionally stopped believing in the existence of God sometime around late 2018 or early 2019. It’s difficult to say exactly when it happened, since it was a gradual process of realizing that all the theological arguments to which I had clung to support my belief in the existence of God were fundamentally flawed. Long after I became an agnostic, though, I still clung to many of the cultural trappings of Christianity. One of these trappings was the BC/AD dating system, which numbers the years from the supposed year of Jesus’s birth, with “BC” standing for “before Christ” and “AD” standing for “anno Domini,” which is Latin for “in the year of the Lord,” referring to Jesus.

For nearly two years after becoming an agnostic, I continued to use this dating system in all my articles. I felt that the alternative BCE/CE dating system (which uses the exact same numbers for the years, but with “BCE” standing for “before the Common Era” and “CE” standing for “Common Era”) was a relatively recent invention of atheists seeking to advance a secularist agenda by taking the Christian dating system and making it superficially “secular” by removing the explicit Christian references while retaining the years numbered from the supposed date of Jesus’s birth. I wondered why secularists didn’t just create a dating system that was actually secular and not based on the supposed date of Jesus’s birth.

Well, it turns out that the history of the “Common Era” dating notation is a lot more complicated and fascinating than I realized. In fact, it is not a recent invention of atheist secularists in any way; it is both quite old and originally Christian. Christians first began using the “Common Era” notation in the early seventeenth century and they have been using it continuously ever since. Jewish people widely adopted the notation in the nineteenth century so that they could use the Christian dating system that everyone around them was using while still upholding their religion by not applying the titles “Christ” and “Lord” to Jesus. The notation is now widely used among scholars and academics, primarily out of respect for followers of religions that don’t regard Jesus as Lord or Christ.

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