BC & AD?

Why do countries that don't typically believe in Jesus still use "BC" and "AD"? Don't they have to do with the time of Jesus' birth?

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The current year numbering system, using the terms Before Christ (B.C.), and Anno Domini (A.D.), which is Latin for in the year of our Lord, was developed over 1500 years ago and gradually gained worldwide acceptance, only being accepted by Asian countries around 1900 A.D.

It was the ever growing need to have a standardized calendar for documenting trade agreements, treaties and contracts between countries around the globe that caused non-Christian countries to reluctantly conform to the system that was already commonly used and well established in the west.

In recent years, there has been a secular push to try and change the familiar “A.D.” and “B.C.” to “C.E.” (Common Era) and “B.C.E.” (Before Common Era) respectively in order to remove A.D. from the standard since it means “in the year of our Lord.”

Maidservant Huldah