i can only think of these but i hope it helps anyway :)
1. standardized weights and measures
2. seal carving
3. metallurgy with copper, bronze, lead, and tin.
I believe the answer is they were the first to trace the circulatory system.
Please put out the document... sorry I can't answer the question without a document
This area is known as a valley. It is a low area between hills or mountains. It often has a river running through it. The shape of the valley will depend on the characteristics of the stream of water flowing through it. Because of the existence of the river, it is possible to have areas of farmland in the sites next to the river. This makes valleys and ideal place for the agricultural industry.
Answer:
yes, otherwise what do you do about the author part of this acronym?
Explanation: