Step 1: Understanding the Concept:
Archaeological excavations in Mesopotamia (modern-day Iraq) revealed that the concept of preserving historical artifacts is thousands of years old.
Step 2: Detailed Explanation:
The earliest museum, known as the museum of Princess Ennigaldi-Nanna, was discovered during the excavations at the ancient city of Ur. It dates back to around 530 BCE. The artifacts found there were arranged in a systematic manner and even included clay labels describing the items, much like modern museum exhibits.
Step 3: Final Answer:
The city is Ur.