that corn was first cultivated in what is now Mexico about 5,000 years ago, followed about 1,500 years later by potatoes in South America and rice in the Far East. Some of our present-day fruit crops-grapes, figs, olives, dates, pomegranates, and mulberries-were being cultivated in the eastern Mediterranean when history was first being recorded. Cultivated Plants It is startling to realize that if animals ceased to exist on earth, plants…
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