__________ reveals that the city was divided into three parts.

___________ formed the upper class.

_____________is the systematic collection of laws .

The ____________ were the first to invent wheel in the neolithic period .

_____________ means the land between two rivers.

Mesopotamians introduced __________ in the construction of buildings.

The mesopotamians built cities like____________.

____________ is the wedge - shaped script of the mesopotamians.

Sumerians wrote from right to left with a sharp reed pen called__________.

The ____________ built the first library in the world.