439 January 1, CODE OF THEODOSIUS II (Byzantine Empire)
The first imperial compilation of anti-Jewish laws since Constantine (c.312) went into effect. Jews were prohibited from holding important positions involving money, including judicial and executive offices. The ban against building new synagogues was reinstated. Theodosius was the Roman emperor of the East (408-450). The Code was also readily accepted by Western Roman Emperor, Valentinian III (425-455).