Scientists may have solved why this ancient, advanced civilization vanished
At its peak, the ancient Indus River Valley civilization featured gridded streets, multistory brick homes, flush toilets and bustling shops. Its people traded gold, precious stones and items such as bronze carts along the region’s waterways. Others carved detailed human figurines and molded clay toys. They grew wheat, barley and cotton, and crafted tools to bring water for crops from nearby rivers.