The destruction of Jerusalem might be regarded as an event of merely domestic importance; for the Roman cosmopolitan it was only the removal of the titular metropolis of a national and an Oriental religion.
In the 4th century it became the metropolis of Narbonensis Secunda.
At this period the metropolis of Byzacena was after Carthage the most important town in Roman Africa.
The mean annual rainfall ranges in different parts of the metropolis from about 202 to 272 in.
The city of Babylon came to the fore as metropolis about 2285 B.C. under Khammurabi.