Dendrochronology absolute relative dating

Consequently, southern Mesopotamia in particular was destined to be a land of trade from the start.

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The availability of raw materials is a historical factor of great importance, as is the dependence on those materials that had to be imported.On the other hand, wood, stone, and metal were rare or even entirely absent.The date palm—virtually the national tree of Iraq—yields a Metal can only be obtained in the mountains, and the same is true of precious and semiprecious stones.The extreme south is a region of extensive marshes and reed swamps, s, which, probably since early times, have served as an area of refuge for oppressed and displaced peoples.The supply of water is not regular; as a result of the high average temperatures and a very low annual rainfall, the ground of the plain of latitude 35° N is hard and dry and unsuitable for plant cultivation for at least eight months in the year.

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