Sumer, though technically an empire, was very successful, and they also invented a lot of different things, such as writing(5000-1750 BC). (1 agos 5000 anni a. C. – 2 agos 1750 anni a. C.)
Aggiunto al nastro di tempo:
Data:
1 agos 5000 anni a. C.
2 agos 1750 anni a. C.
~ 3252 years