the Nile,Tigris,and Euphrates river were part of the assyrian empire
The main rivers in/ around Mesopotamia were the Tigris River and the Euphrates River (it's very hard to spell, but I spelled it right ;D)
Butts
Assyrian, Babylonian.
Iraq.
The Assyrian Empire.
Assyrian, Babylonian and part of the Greek world.
No rivers divided the western part of the Roman empire. If you mean what rivers formed the frontiers of the this part of the Roman Empire, they were the Rhine and the upper Danube. In between them there was the limes germanicus, a line of fortifications which crossed southern and central Germany.
Major rivers in the European part of Russia are the Don, the Kama, and a river called the Volga. In the Asian part of Russia, some of the major rivers are the Ob, the Yenisey, the Angara, and the Irtysh.
Fertile Crescent is the part of Middle East that has the shape of a quarter moon. It is the birthplace of the six empires which includes the Akkadian Empire, Babylonian Empire, Assyrian Empire, Hebrew Empire, Chaldean Empire and Sumerian Empire.
The north-eastern part of the Roman Empire was formed by only one river: the Danube. The whole of the northern boundary of the Roman Empire was demarcated mostly by two rivers: the Danube and the Rhine. The latter marked the north-western frontier.
The countries absorbed by Persia included Media, the Babylonian Empire, the remnant of the Assyrian Empire, the Lydian Empire and other peoples in Asia Minor, Thrace, Syria, Parthia, the peoples of Central Asia, Egypt, Libya.
To produce a civilisation, after producing a surplus to finance it, you need sophisticated ways of doing things. So you need specialised workers to carry it out. This was begun in the Middle East by the Assyrian Empire, replaced by the Babylonian Empire then by the Persian Empire to carry it on and improve it.
Now it is northern Iraq. Originally, its centre was Ashur, a city state. In the 14th century Assyria created an empire: all the territories from the Persian Gulf to Egypt. Its capital was Niniveh (today Mosul).