KnowraCommon EraLinked fromLinked fromThe 9 pages that link to Common Era, each with the reason it gives.All 9Related 3Compared with 6Astronomical year numberingRelated: Its positive-year sequence supplies the numbering that continues after astronomical year 0.21st centuryRelated: Its year numbering supplies the dates used to identify this century.Before PresentRelated: Calendar years in the Common Era provide the scale BP dates may be calibrated into.