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  2. Silurian hypothesis - Wikipedia

    en.wikipedia.org/wiki/Silurian_hypothesis

    Frank and Schmidt imagined an advanced civilization before humans and pondered whether it would "be possible to detect an industrial civilization in the geological record". [2] They argue as early as the Carboniferous period (~350 million years ago) "there has been sufficient fossil carbon to fuel an industrial civilization comparable with our ...

  3. History of water supply and sanitation - Wikipedia

    en.wikipedia.org/wiki/History_of_water_supply...

    The ancient Greek civilization of Crete, known as the Minoan civilization, built advanced underground clay pipes for sanitation and water supply. [28] Their capital, Knossos, had a well-organized water system for bringing in clean water, taking out waste water and storm sewage canals for overflow when there was heavy rain.

  4. History of Mesopotamia - Wikipedia

    en.wikipedia.org/wiki/History_of_Mesopotamia

    Map showing the extent of Mesopotamia. The Civilization of Mesopotamia ranges from the earliest human occupation in the Paleolithic period up to Late antiquity.This history is pieced together from evidence retrieved from archaeological excavations and, after the introduction of writing in the late 4th millennium BC, an increasing amount of historical sources.

  5. Did another advanced species exist on Earth before humans? - AOL

    www.aol.com/news/2018-05-01-did-another-advanced...

    If an earlier civilization existed on Earth millions of years ago, we might have trouble finding evidence of it -- but that doesn't mean it didn't exist.

  6. Human history - Wikipedia

    en.wikipedia.org/wiki/Human_history

    Human history is the record of humankind from prehistory to the present. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers.They migrated out of Africa during the Last Ice Age and had spread across Earth's continental land except Antarctica by the end of the Ice Age 12,000 years ago.

  7. Archaeologists Found an Extraordinary Pyramid That's ...

    www.aol.com/archaeologists-found-extraordinary...

    A new paper published in Archaeological Prospection calls that record into question with the strong claims of a “prehistoric pyramid” in Indonesia that is up to 27,000 years old. Not everyone ...

  8. Civilization - Wikipedia

    en.wikipedia.org/wiki/Civilization

    Civilizations are traditionally understood as ending in one of two ways; either through incorporation into another expanding civilization (e.g. as Ancient Egypt was incorporated into Hellenistic Greek, and subsequently Roman civilizations), or by collapsing and reverting to a simpler form of living, as happens in so-called Dark Ages. [83]

  9. Portal:Civilizations - Wikipedia

    en.wikipedia.org/wiki/Portal:Civilizations

    The ancient Sumerians of Mesopotamia were the oldest civilization in the world, beginning about 4000 BCE.. A civilization (also spelled civilisation in British English) is any complex society characterized by the development of the state, social stratification, urbanization, and symbolic systems of communication beyond signed or spoken languages (namely, writing systems and graphic arts).