What was/were the reason/s behind the decline of the Indus Valley civilization?
What was the reason of extinction of the Indus Valley and Harappan civilization?
How did the Indus Valley Civilization get started? How was the Indus Valley civilization different from or similar to other contemporary civilizations? When Indus Valley civilization will be declared the oldest, as per the new evidence? Are Indus Valley civilization and "Aryan" civilization different names of the same civilization? What are the distinctive features of an Indus Valley civilization? What are some good books about the Indus Valley Civilization? Which is the largest site of Indus valley Civilization? What type of art work did the Indus Valley civilization make? Which one is oldest; Mesopotamia or Indus Valley Civilization ? Which is the oldest civilization: Chinese, Egyptian, Mesopotamian, Mayan, Indus Valley, Other civilization? Which is the largest site of Indus Civilization? Ancient History: Which civilization is older - Indus Valley or Chinese Bronze Age? Is there a movie based on the Indus valley civilization? Are there any novels based on Indus valley civilization? If yes, then please mention their names. Why did the native North Americans fail to develop the civilizations that the Mesoamericans did? Why the oldest civilization were only in Indian Subcontinent (modern India, Pakistan, Afghanistan, Nepal, Bangladesh, Myanmar and Sri Lanka)? Is there any fiction book written on Indus valley civilization? What are some theories about the cause of the disappearance of the Mohenjo-daro civilization in the 19th century BCE? Why isn't the Indus a holy river for Hindus? Which is oldest and first civilization developed? If history is to be believed the oldest civilization was the Mesopotamian civilization or the Indus Valley civilization, but if that is true (which is already proved) then what about "The Ramayan," as it took place somewhere around 5110 BC according to the latest findings? Could someone tell me why some Afro-Americans claim that all ancient North African civilizations were founded by them? Was the desertification of North Africa and Mesopotamia inevitable? How has the extinction of large predators in Britain affected the countries topography? Did Ancient India ever conquer other civilizations? Why? What happened to the ancient Egyptian civilization? How was the first civilization developed? What happened to the ancient Egyptian civilizations? What caused the end of the Islamic Golden Age? How and why did the Mohenjo Daro civilization end?