GENERAL KNOWLEDGE

Detailed explanation-1: -"B.C.” stands for “before Christ.” The system labels years based on a traditional notion of when Jesus was born-with the “A.D.” denoting years after his birth and “B.C.” designating the years that predate his birth.

Detailed explanation-2: -The Julian calendar, the forerunner of the Gregorian calendar, replaced the old Roman calendar on January 1, 45 BCE (Before Common Era), or – if you prefer – on January 1, 45 BC (before Christ).

Detailed explanation-3: -Why Have Some People Adopted BCE/CE? An important reason for adopting BCE/CE is religious neutrality. Since the Gregorian calendar has superseded other calendars to become the international standard, members of non-Christian groups may object to the explicitly Christian origins of BC and AD.

Detailed explanation-4: -This calendar era is based on the traditionally reckoned year of the conception or birth of Jesus, AD counting years from the start of this epoch and BC denoting years before the start of the era. There is no year zero in this scheme; thus the year AD 1 immediately follows the year 1 BC.

Detailed explanation-5: -The traditionally accepted year of Christ’s birth is labeled AD 1 and the year before is 1 BC. This calendaring system was devised in AD 525, but was not widely used until after AD 800.