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  2. List of rivers by age - Wikipedia

    en.wikipedia.org/wiki/List_of_rivers_by_age

    This river may predate the break-up of western Gondwana as an extension of a proto-Congo river system, 200 Mya during the Jurassic. Ohio: 3~2.5 Mississippi River: Formed when the Laurentide Ice Sheet dammed the north flowing Teays River during the Pre-Illinoian glaciation. The drainage area of the Teays could no longer drain to the north, and ...

  3. Portsmouth Earthworks - Wikipedia

    en.wikipedia.org/wiki/Portsmouth_Earthworks

    The Portsmouth Earthworks are a large prehistoric mound complex constructed by the Native American Adena and Ohio Hopewell cultures of eastern North America (100 BCE to 500 CE). [2] The site was one of the largest earthwork ceremonial centers constructed by the Hopewell and is located at the confluence of the Scioto and Ohio Rivers, in present ...

  4. List of historical maps - Wikipedia

    en.wikipedia.org/wiki/List_of_historical_maps

    Map of Maximus Planudes (c. 1300), earliest extant realization of Ptolemy's world map (2nd century) Gangnido (Korea, 1402) Bianco world map (1436) Fra Mauro map (c. 1450) Map of Bartolomeo Pareto (1455) Genoese map (1457) Map of Juan de la Cosa (1500) Cantino planisphere (1502) Piri Reis map (1513) Dieppe maps (c. 1540s-1560s) Mercator 1569 ...

  5. History of cartography - Wikipedia

    en.wikipedia.org/wiki/History_of_cartography

    The earliest maps ignored the curvature of Earth's surface, both because the shape of the Earth was uncertain and because the curvature is not important across the small areas being mapped. However, since the age of Classical Greece , maps of large regions, and especially of the world, have used projection from a model globe to control how the ...

  6. Teays River - Wikipedia

    en.wikipedia.org/wiki/Teays_River

    The Teays River / ˈ t eɪ z / [1] (pronounced taze) was a major preglacial river that drained much of the present Ohio River watershed, but took a more northerly downstream course. Traces of the Teays across northern Ohio and Indiana are represented by a network of river valleys.

  7. Timeline of North American prehistory - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_North_American...

    1000–1750: Fort Ancient culture, a non-Mississippian culture emerges in modern-day southern Ohio, northern Kentucky, southeastern Indiana, and western West Virginia. 1000–1780: Plains Village period on Great Plains, from North Dakota to Texas [3] 1070: Great Serpent Mound built in Ohio. [13]

  8. Rivers of classical antiquity - Wikipedia

    en.wikipedia.org/wiki/Rivers_of_classical_antiquity

    Following is a list of rivers of classical antiquity stating the Latin name, the equivalent English name, and also, in some cases, Greek and local name. The scope is intended to include, at least, rivers named and known widely in the Roman empire. This includes some rivers beyond the bounds of the Roman empire at its peak.

  9. Ohio River - Wikipedia

    en.wikipedia.org/wiki/Ohio_River

    The Ohio River at Cairo is 281,500 cu ft/s (7,960 m 3 /s); [1] and the Mississippi River at Thebes, Illinois, which is upstream of the confluence, is 208,200 cu ft/s (5,897 m 3 /s). [66] The Ohio River flow is greater than that of the Mississippi River, so hydrologically the Ohio River is the main stream of the river system.