of same-sex marriage dating back to the first century A.D. Nero was the first, though there is no legal provision for this in Roman Law, and it was banned in the Roman Empire in the fourth in a law of 342 A.D., but the text is corrupt, "marries a woman" nubit feminam might be cubit infamen "goes to bed in a dishonorable manner with a man" as a condemnation of homosexual behavior between men. Conubium existed only between a civis Romanus and a civis Romana (that is, between a male Roman citizen and a female Roman citizen), so that a marriage between two Roman males (or with a slave) would have no legal standing in Roman law (apart, presumably, from the arbitrary will of the emperor in the two aforementioned cases). Same-sex marriage was outlawed on December 16, 342 AD by the Christian emperors Constantius II and Constans. This law specifically outlaws marriages between men and reads as follows: When a man “marries” in the manner of a woman, a “woman” about to renounce men, what does he wish, when sex has lost its significance; when the crime is one which it is not profitable to know; when Venus is changed into another form; when love is sought and not found? We order the statutes to arise, the laws to be armed with an avenging sword, that those infamous persons who are now, or who hereafter may be, guilty may be subjected to exquisite punishment. (Theodosian Code 9.7.3) According to Robin Lane Fox, among the unusual customs of the isolated oasis of Siwa (now Egypt, once Libya), one of great antiquity which survived to the 20th century was male homosexuality and same-sex marriage. Policy of the early Christian Church and Middle Ages As did other philosophies and religions of the time, increasingly influential Christianity promoted marriage for procreative purposes. The teachings of the Talmud and Torah, and the Bible, were seen as specifically prohibiting the practices as contrary to nature and the will of the Creator, and a moral shortcoming. Even after the passing of the Theodosian code the Christian emperors continued to collect taxes on male prostitutes until the reign of Anastasius (491–518). In the year 390, the Christian emperors Valentinian II, Theodoisus and Arcadius declared homosexual sex to be illegal and those who were guilty of it were condemned to be burned alive in front of the public.