Excavations within the medieval Great Church of Jesus in northern Sudan's Old Dongola uncovered a section of the original cathedral floor for the first time, according to an IFL Science report. Old Dongola was the capital of Makuria, a flourishing Nubian kingdom that converted to Christianity in the sixth century A.D. The cathedral once dominated the ancient metropolis, measuring 154 feet wide and 187 long, and standing over six stories high. It was one of the most monumental and important Christian buildings in Nubia, likely serving as the seat of the Bishop of Dongola, one of the most senior Christian...