What are the three important river valley civilizations that started in Asia?

1. Indus Valley Civilization: Flourished along the Indus River in present-day Pakistan and India. Major urban centers included Mohenjo-Daro and Harappa. Known for its well-organized cities, standardized weights and measures, and advanced drainage systems.

2. Mesopotamia (Sumerian Civilization): Developed between the Tigris and Euphrates Rivers in present-day Iraq. Considered one of the earliest civilizations. Sumerians developed cuneiform writing, advanced mathematical and astronomical knowledge, and the concept of city-states.

3. Yellow River Civilization: Also known as the Huang He civilization, it arose along the Yellow River in present-day China. Notable for the development of early dynastic states, such as the Xia and Shang Dynasties. Chinese script, bronze metallurgy, and the construction of large-scale water control projects mark the achievements of this civilization.