Why aren christian era artists recognized?
My friend, there has never been a specific era known as the Christian Era. The ‘Christian Era’ can not ever be an era because eras are not open-ended and therefore will last as long as there are enough believers. But not as an era. To the other part of your question, you really, really ought to spend at least a little time and effort studying art and history. The fact is, most of the famous art in the thousand years after Christ’s Crucifixion was Christian related and the great painters from that time, from Michelangelo to Da Vinci, worked mostly on Christian related art. Ever hear of the painting ‘The Last Supper’ or ever see the images, the huge and very famous mural, painted by Michelangelo for the ceiling of the Sistine Chapel? The great early Christian churches all had Christian art painted (as well a sculptures) and displayed in the churches. Most of that art still exists and much of it is well known.