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  2. Timeline of prehistory - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_prehistory

    6000 BC: Evidence of habitation at the current site of Aleppo dates to about c. 8,000 years ago, although excavations at Tell Qaramel, 25 kilometres (16 mi) north of the city show the area was inhabited about 13,000 years ago, [124] Carbon-14 dating at Tell Ramad, on the outskirts of Damascus, suggests that the site may have been occupied since ...

  3. 6th millennium BC - Wikipedia

    en.wikipedia.org/wiki/6th_millennium_BC

    [9] [full citation needed] Large scale constructions occur as early as 6000 BC. Prehistoric settlements in remote Siberia have revealed that 8,000 years ago construction of complex defensive structures, such as the Amnya complex, occurred with political warfare. They are the oldest fortresses in the world.

  4. Holocene climatic optimum - Wikipedia

    en.wikipedia.org/wiki/Holocene_climatic_optimum

    A study in 2020 estimated that the average global temperature during the warmest 200 year period of the HCO, around 6,500 years ago, was around 0.7 °C warmer than the mean for nineteenth century AD, immediately before the Industrial Revolution, and 0.3 °C cooler than the average for 2011-2019. [6]

  5. Ancient humans built a bridge inside a cave on Mallorca ... - AOL

    www.aol.com/news/ancient-humans-built-bridge...

    But a telltale “bathtub ring,” along with mineral formations detected on the bridge, has allowed scientists to estimate that the structure was built nearly 6,000 years ago, said lead study ...

  6. List of decades, centuries, and millennia - Wikipedia

    en.wikipedia.org/wiki/List_of_decades,_centuries...

    See calendar and list of calendars for other groupings of years. See history , history by period , and periodization for different organizations of historical events. For earlier time periods, see Timeline of the Big Bang , Geologic time scale , Timeline of evolution , and Logarithmic timeline .

  7. World’s oldest writing system may have its origins in ...

    www.aol.com/mysterious-engraved-pictographs-may...

    A link exists between 6,000-year-old engravings on cylindrical seals used on clay tablets and cuneiform, the world’s oldest writing system, according to new research.

  8. African humid period - Wikipedia

    en.wikipedia.org/wiki/African_humid_period

    The African humid period ended 6,000–5,000 years ago during the Piora Oscillation cold period. While some evidence points to an end 5,500 years ago, in the Sahel, Arabia and East Africa, the end of the period appears to have taken place in several steps, such as the 4.2-kiloyear event.

  9. 6,000-year-old wood carving could solve Stonehenge mystery

    www.aol.com/prehistoric-timber-totem-pole...

    The oldest decorated wooden object ever found in Britain has been discovered near Stonehenge