Indus Valley Civilisation was one of three early civilisations of South Asia and the Near East, along with Mesopotamia and ancient Egypt.
The Indus Valley Civilisation existed in the Bronze Age in South Asia's northwestern regions and lasted from 3300 BCE to 1300 BCE.
The mature form of the Indus Valley Civilisation was achieved from 2600 BCE to 1900 BCE and included northwestern India, northeast Afghanistan, and most of modern-day Pakistan.
Cities of the Indus Valley Civilisation had baked brick houses, urban planning, and elaborate drainage systems.
Harappa and Mohenjo-daro had populations of 30,000 to 60,000 people each.
The Mesopotamian Civilisation was located in West Asia within the Tigris-Euphrates river system and covered present-day Iraq and parts of Turkey, Iran, Kuwait, and Syria.
Mesopotamia witnessed early developments of the Neolithic Revolution around 10,000 BC.
The Chinese civilisation dates back to 5,000 years and originated in the Yellow River valley.
The Chinese civilisation's first written records date back to the IV millennia BC.