WORLD HISTORY

Detailed explanation-1: -The Indus Valley civilization (circa 3300–1700 B.C.E.), also known as the Harappan civilization, was one of the earliest urban civilizations, roughly contemporaneous with those of Mesopotamia, Egypt, and China. It was located in what is now Pakistan and northwest India, on the flood plain of the Indus River.

Detailed explanation-2: -These cities were developed about 4700 years ago.

Detailed explanation-3: -Harappa is known to be a 4700 years old city in the subcontinent which was discovered around the time 1920. Soon after the discovery of cities like Lothal, Dholavira, Mohenjodaro, and Kalibangan have also been discovered and were come to be known as the Harappan cities or also the advent of Harappan Civilization.

Detailed explanation-4: -Scientists from IIT-Kharagpur and Archaeological Survey of India (ASI) have uncovered evidence that the Indus Valley Civilization is at least 8, 000 years old, and not 5, 500 years old, taking root well before the Egyptian (7000BC to 3000BC) and Mesopotamian (6500BC to 3100BC) civilizations.