My friends are always surprised by the origins of food crops. What would the world be eating without the Americas?https://twitter.com/calestous/status/653574650803453952 …
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@calestous I was about to say,"+ loads of diseases in exchange for American gold and silver". Little doubt the "old world" got a better deal
@calestous that is of course ignoring the human cost to Africa. It's a wonder anyone still celebrates Columbus Day.
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