Indus Valley Civilization. Civilization. It's also sometimes referred to as the Harappan Civilization which was the first site where they found evidence of this fairly extensive civilization. Now to get ourselves acquainted in time, this shows when archeologists, historians consider to be the main part of the Harappan Civilization. There's evidence that people had basic villages, civilizations, agriculture here as far back as 7,000 BCE. And that's just based on the evidence we have today. But when people refer to the Indus Valley Civilization in particular, they're usually starting around 3,300 BCE.