How did the sumerians invent writing

Sumerians lived in the Fertile Crescent area of modern Iraq. After the invention of agriculture, they made tablets from the nearby river mud. While these clay tablets were still wet, they used a sharpened stick, called a stylus to make markings on the tablet to keep records of sales and purchases of grain. Believe it or not, his wedge-shaped style of writing, called cuneiform, was invented by ancient accountants.

Assemblies do not have written codes of laws. laws are matters for magistrates and courts, not assemblies. codes of law are things such as civil law, criminal law, and constitutional law. what assemblies have are procedures regarding debating, voting and other business they might carry out.  also note that rome had three assemblies: the assembly of the soldiers, the assembly of the tribes, and the plebeian councils.