Final answer:
City-states showed signs of tremendous wealth through the construction of elaborate palaces and grand monuments, a high standard of living for the citizens, and historical records of wealth accumulation and economic prosperity.
Step-by-step explanation:
City-states became extremely wealthy, and we have multiple pieces of evidence to support this. The evidence includes elaborate palaces and grand monuments that were built, signifying their power and wealth. Additionally, historical records show the accumulation of vast wealth and treasures within these city-states. The citizens enjoyed a high standard of living with access to luxuries, indicating substantial economic prosperity. Moreover, these city-states were known for their redistributive economic systems, massive storage facilities for collected taxes, and sophisticated trade practices, further demonstrating their wealth.
Throughout various periods, such as the Early Dynastic Period and the Assyrian Empire, we observe the construction of grand palaces designed on an elaborate scale, which also functioned as economic and administrative hubs. Palaces and temples operated as centers for economic redistribution, indicating a complex and flourishing economy. Artisans, scribes, and merchants were employed, and their activities facilitated by comprehensive record-keeping and storage practices. In addition, military forces and diplomatic practices highlight the vast resources and political influence wielded by these wealthy city-states.