because scientists do not know much about them
Potty is very important!
Harappa was its centre.
There were two main rivers in the Indus Valley Civilization; The Ghaggar-Hakra and the Indus.
when the indus valley civilisation was unerthened lots of human skeleton was found at many places therefore it was also called harappan civilisation.
Africa is inhabited by native Africans, bushmen, pygmies & Masai Tribesmen who are typically dark skinned. Immigrants such as Arabs, Indians & Europeans also live there. An ancient civilization was developed on the Nile valley in Egypt. It is called the Egyptian Civilization of Gift of Nile.
Harrapa is the only one city of Indus Valley Civilization so it should not be considered or called Harrapan Civilizations ..... Indus Valley Civilization has around 1500 discovered sites ... so please keep naming it INDUS VALLEY CIVILIZATION... thanks
during the ancient times river was the only source of water for the people. so they settled near around the river only. the civilizations that flourished in the river valleys are called river valley civilization.
the Indus river valley was also called the fertile crescent, it was a huge farming civilization for the people of Mesopotamia
The Hueng He civilization began around 4000 B.C. This was also called the Yellow River Valley civilization.
Because it was built at the site of the ancient Hohokam civilization, it was called Phoenix, a city risiing from an ancient civilization.
Because one of the first cities was called Harappa.
There are dozens of remains around the world, subject to much speculation., so they are generally termed Ancient Lost Civilisations - the claims range from Mars to the Amazon Valley.