What were the events taken place in 5000 b.c - 2200 b.c in ancient mesopotamia?

i am doing a project about the events taken place in ancient mesopatamia between5000 b.c-2200 b.c and i dont know what to do please. please tell me the events

What were the events taken place in 5000 b.c - 2200 b.c in ancient mesopotamia?
First to use a form of record keeping with bula...dried clay ball shaped artifacts with tokens inside, first forms of written language using clay with cunieform figures, used irrigation and agriculture tools, first to write down codes or laws, %26amp; developed early trade.
Reply:they were making good beer.


http://oi.uchicago.edu/OI/IS/CIVIL/NN_FA...
Reply:Rules/laws became codify and where written for all could see.