they are the cuneiform and the pictographs.
Probably the most common one is the wheel or maybe the calender, they also made the plow and the first stringed instruments
the
cuneiform writting and mythology.
The plow,the wheel,and irrigation systems
Monarchy: The world's first system of monarchy is also a Sumerian invention.
Not sure but I need an answer fast
the wheel and irragation
Cuneiform writing, the wheel and irrigation.
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they had so many new inventions that they sold
hahahah this is weird and dump get a life
Irrigation, the wheel, and writing.