He Who Saves His Country Does Not...
Society & Culture1 min ago
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For more on marking an answer as the "Best Answer", please visit our FAQ.Hi TB - the theory that the Chinese were sailing round the world long before westerners is put across in the book '1421' by Gavin Menzies. In it he offers that Chinese were sailing to South America and leaving with some of the plants so likely that could be an earlier date for the introduction of maize.
Carrots were from the Afganistan region originaly - the carrot was a purple or a white root, the orange strain only really being devloped fairly recently. Have a look at : http://www.carrotmuseum.co.uk/foyer.html if you are bored...loads of facts there on the links.