400 - 600 ROMAN EMPIRE
Was broken up by German tribes - the Huns, Vandals and Goths. The Papacy was established.
C. 400 JEWISH KINGDOM IN ARABIA
During a siege on Yathrib (Medina) Abu Karib Asad Kamil (c. 385-420), a Himyarite (Southern Arabian) king became ill. Reportedly he was saved by two Jews in the besieged city and in return agreed to lift the siege and converted to Sadduceean Judaism. He succeeded in conquering much of the Arabian peninsula together with Jewish tribes and pagan allies.