About 800 BC if I got the date right,
Quote:
| Tobacco was only one of the crops grown at Adena villages. The Mississippi and Ohio Valleys and much of the U.S. Southeast were home to what is known as the Eastern Agricultural Complex. A full-fledged agricultural revolution with a multifarious suite of crops, the complex is an example of a major cultural innovation that has completely disappeared. Its crops were such unfamiliar plants as marshelder, knotweed, maygrass, and little barley. All of these species still exist; one could stock a specialty restaurant with them.
Mann, Charles C. (2006-10-10). 1491 (Second Edition): New Revelations of the Americas Before Columbus (Kindle Locations 5215-5219). Knopf Doubleday Publishing Group. Kindle Edition. |
Ancient crops in USA
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