for its indoor drain
the dynastic cycle is just a cycle showing how empires rise and fall and the Mandate of heaven is what the Zhou Dynasty claimed gave them the right to rule. I guess they are related because Spring in the Dynastic Cycle is when an Empire would get the Mandate
indoor drainage
That would be the Indus Valley Civilization, also known as the Harappan Civilization.
Because one of the first cities was called Harappa.
Civilization began in the Harappan or Indus Valley Civilization which flourished during Mesopotamian and Egyptian Civilization. It was situated on the banks of River Indus
indus valley civilization
Indus Valley
Harappan civilization develop in the Indus River valley
The Harappan or Indus valley civilization was named after the archeological site of Harappa in Pakistan.
The Harappan or Indus Valley civilization was located in the Indus Valley of Pakistan and the Sarasvati river valley in north India, from about 2600 to 1900 BC.
Harappan civilization develop in the Indus River valley
Harappan civilization
Harappan Civilization
Harappan civilization develop in the Indus River valley
Harappan Civilization
Harappan civilization and the Sarasvati-Sindhu civilization.
The Harappan
Harappan civilization
Harappan civilization