The greatest revolt appears to have been, however, in the time of Justinian, when the whole race rose, in May 529 A.D., attacked the Christians, put the Bishop of Neapolis to death, and crowned a certain Julian. Their punishment was cruel, and henceforward they disappear from history, having probably been almost exterminated. The Emperor Zeno had in 474 A.D. erected a church on Gerizim. This church Justinian converted into a sort of fortress by building a second wall round it. He also caused five churches (possibly all now represented by mosques) to be rebuilt in Neapolis. In the fifth century the Samaritans had begun to spread over Egypt and southern Palestine, in 493 A.D. they had a synagogue in Rome. In the seventh century, according to their own records, they occupied the whole of Palestine except the Judean hills. Up to some fifty years ago they had a synagogue in Gaza, the last of their communities, which in the seventeenth century also existed in Cairo and Damascus. At the present day they are found only in the town of Nablus, and appear to have become extinct in other towns about the year 1820 A.D. In the middle ages they seem to have been undistinguished from the Jews, and thus it is only in the writings of a Jew (R. Benjamin of Tudela) that they are described. He speaks of about one hundred Cutheans “who observe the law of Moses only,” that is to say, do not recognise the later books. Though writing with the usual Pharisaic prejudice, the Rabbi admits the priestly family to be descendants of Aaron. The existence of an ancient roll of the law, in possession of the Samaritans, was known to Scaliger; a copy was obtained by Pietro Della Valle in 1616 A.D., and this brought the Samaritans again into notice. They became a sort of pet people among learned men, and long correspondences were held with them. Thus, although the ancient copy at Shechem has never been collated, the value of the Samaritan version of the Pentateuch is well known to students.