What innovation that originated in the Hyundai river valley spread to other civilizations

One significant innovation that originated in the Hyundai River Valley and spread to other civilizations was the development of bronze metallurgy. The early inhabitants of the Hyundai River Valley, particularly in present-day China, made significant advancements in metalworking techniques during the Bronze Age. They discovered that by combining copper with tin, they could create a stronger and more durable metal called bronze.

The production and utilization of bronze quickly spread from the Hyundai River Valley to neighboring regions and civilizations. This spread was facilitated by trade networks and cultural exchanges. Bronze became highly valued due to its superior properties compared to pure copper, as it was harder, more resistant to corrosion, and enabled the creation of new tools, weapons, and artistic objects.

The knowledge and techniques of bronze metallurgy gradually spread to various civilizations such as the Indus Valley, Mesopotamia, Egypt, and beyond. Each region further promoted its development, adapting it to suit their specific needs and incorporating bronze objects and tools into their societies. The innovation of bronze metallurgy played a significant role in urbanization, technological advancements, and cultural development in the ancient world.