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=== to the Americas === | === to the Americas === | ||
== Technologies | == Technologies == | ||
* the most important exchanges were: | * the most important exchanges were: | ||
** iron | ** iron | ||
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=== from the Americas === | === from the Americas === | ||
* rubber | * rubber | ||
** used for balls | ** rubber is a natural latex (a milky-substance, like sap, that is derived from certain tropical trees) | ||
** | *** most modern rubber is derived from the Rubber Tree, a native plant of the Amazon (the Rubber Tree can grow to 140 feet) | ||
**** see [https://en.wikipedia.org/wiki/Hevea_brasiliensis Heva Brasiliensis (wiki)] for the story of this important plant | |||
** earliest documented use of natural latex (rubber) was by the Olmec civilization in Mesoamerica (central America) | |||
*** the Olmec and, later, Maya and Aztec, used rubber for balls for sports | |||
** the Aztec added rubber to cloth to make it waterproof | |||
* canoes | * canoes | ||
** from the Tiaino word << | ** from the Tiaino word << | ||
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* iron | * iron | ||
* alcohol | * alcohol | ||
== Language == | == Language == |