Dom Pedro II said:Yes... I do know a bit about the Nubians.
And indeed, those Christians are now being massacred in Sudan IIRC.
Interesting thing about those "Christians"; there is (or perhaps was, all things considered) a bit of a renaissance amougn the SUdanese og Judaism; for a very long time, the Sudanese were under a heavy influence of chrstian and Judiaic traditions, and in recent years, had begun whole sale conversion to proper Judaism...
its a long story, in which i forget most of the detials of; read an article about it though, and from ahistoricle standpoint, isnt all that far fetched; Jewish communities had exsted in southern Arabia and Ethiopea for centuries; Sudan is just a stones throw away