Answer:
Please, Send the letter with your question..
Explanation:
Three aspects would technology, goverment and cultural diffusion hope this helps
The City Wall of Nanjing<span> (</span>Chinese<span>: </span>南京城墙<span>; </span>pinyin<span>: </span>Nánjīng chéngqiáng<span>) was designed by </span>Emperor Zhu Yuanzhang<span> (r. 1328–1398) after he founded the </span>Ming Dynasty<span> (1368–1644) and established </span>Nanjing<span> as the capital 600 years ago. To consolidate his sovereignty and keep out invaders, he adopted the suggestions of advisor Zhu Sheng to build a higher </span>city wall, to collect grains and to postpone the coronation. Then, he started to build the city wall. It took 21 years to complete, and used 200,000 laborers to move 7 million cubic metres of earth. The City Wall of Nanjing was among the largest city walls ever constructed in China.[1][2]<span> The enclosed </span>Nanjing City<span> is about 55 square kilometers.</span>
The most important economic development in the mid-19th-century south was the cotton gin.
Answer: The Akkadians managed to unite Mesopotamian city-states
Explanation: Under the rule of Sargon and subsequent kings of the kingdom, the Akkadian Empire, which is considered the first acknowledged empire in history, reached a peak around the 22nd century BCE.
By conquering other countries to divide them into a single Mesopotamian empire, Sargon created the Akkadian empire and replaced existing Akkadian noble people to replace rulers.
In the west and over Elam in the east, the Akkadian empire stretched up to the Mediterranean Sea.
