In the 1920s, archaeologists began to excavate the sites of Harappa and Mohenjo-Daro. They had uncovered the remains of two long-forgotten cities and found the Indus Valley civilisation.
Image caption, These seals with writing on were found in the city of Mohenjo-Daro. What do you think they say? Indus Valley writing used at least 400 picture-signs. They were not letters like in ...
The decline of the Indus Valley Civilization (IVC), one of the earliest and most advanced urban cultures of the ancient world ...