What does Tigris Euphrates nile indus and Huang he rivers have in common?

Answer 1

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Answer 2

They were depicted in one of the earliest maps in recorded history, the "T-O" map. The "T" depicted the 3 major rivers in Mesopotamia: Euphrates, Tigris and the Nile; and the "O" signified the land-mass around these rivers.

Reference: "Shedding the Veil: Mapping the European Discovery of America and the World" by Thomas Suárez, World Scientific America, 1992, page 10

Answer 3

all of them have civilisations based on them

Answer 4

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