INDIAN HISTORY

Detailed explanation-1: -Sumer: By the fourth millennium BCE, Sumerians had established roughly a dozen city-states throughout ancient Mesopotamia, including Eridu and Uruk in what is now southern Iraq. Sumerians called themselves the Sag-giga, the “black-headed ones.” They were among the first to use bronze.

Detailed explanation-2: -As it turns out, bronze was instrumental to the rise of these civilizations because of its usefulness in two things. First is weapons. Bronze weapons were much stronger and more durable than copper weapons, and Mesopotamian armies outfitted themselves with bronze spears, arrows, swords, and shields.