The Indus Valley Civilization (IVC) was a Bronze Age civilisation (3300–1300 BCE; mature period 2600–1900 BCE, pre-Harappan cultures starting c.7500 BCE). The Indus Valley Civilization is also known as the Harappan Civilization, after Harappa, the first of its sites to be excavated in the 1920s, in what was then the Punjab province of British India, and is now in Pakistan.