The first site where the Indus Valley Civilization (IVC) was discovered is Harappa, located in present-day Pakistan. In the 1920s, archaeologists began excavating Harappa and uncovered evidence of a highly advanced urban culture with sophisticated drainage systems, impressive architecture, and evidence of trade and writing.
Harappa, along with Mohenjo-Daro, is considered one of the major sites of the IVC. The discovery of these sites dramatically changed our understanding of ancient civilizations in the Indian subcontinent, revealing a complex and urbanized society that existed thousands of years ago.