Define before christ and A.D,also differentiate
It is interesting to note that the purpose of the BC / AD dating system was to make the birth of Jesus Christ the dividing point of world history. However, when the B.C. / A.D. system was being calculated, they actually made a mistake in pinpointing the year of Jesus' birth. Scholars later discovered that Jesus was actually born in around 4-6 BC, not 1 AD. That is not the crucial issue. The birth, life, ministry, death, and resurrection of Christ are the "turning points" in world history. It is fitting, theref ...more
The Gregorian calendar, and the year numbering system associated with it, is the calendar system with the most widespread usage in the world today. For decades, it has been the unofficial global standard, recognized by international institutions such as the United Nations and the Universal Postal Union. It is also a basis of scholarly dating, though some people adopt the Common/Christian Era labels, retaining the same numeric values but using the label "CE" (Com ...more
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The AD/BC method of identifying historical dates can be traced back to Catholic historians working in the early Middle Ages. Identifying historical dates until that point was often a complicated proposition, since different historians worked under different calendars. A Roman historian would have used the ...more
AD denotes "Anno Domini", time after Jesus Christ took birth on Earth.
B.C.: Before Christ
A.D.: from the Latin Annus Domini (The Year of Our Lord)
Science books no longer use these abbreviations. Instead, they use:
B.C.E.: Before Common Era
C.E. : Common Era