Question

When
were the Happen cities built ?​

Answer 1

Answer:

3000–1000 BC

3000–1000 BC. The emergence of cities and states was one of the most significant changes to happen in human society after the development of agriculture. The ancient Egyptian, Mesopotamian and Harappan civilisations created some of the world's first cities.

Answer 2

3000–1000 BC. The emergence of cities and states was one of the most significant changes to happen in human society after the development of agriculture. The ancient Egyptian, Mesopotamian and Harappan civilisations created some of the world's first cities.