Laos, Cambodia, and Vietnam.
Answer:
The ability of the Sumerians to organize their society more effectively by keeping written records of economic transactions
Explanation:
In the picture, we can see a clay tablet written with cueniform script. The subject matter is an administrative account of barley distribution. This tablet tells us that the Sumerians not only had writing, but they used this writing to create texts that were of public interest, such as a text that gives account of system of barley distribution.
We can see that the Sumerians were careful about the economic system of their civilization, keeping written records of many economic transactions.
