Well, it apparently is not so obvious because in the Americas, before Columbus came-- " pre-Columbian America-- there were no wheeled vehicles anywhere.

好吧，从表面上看这似乎不那么显而易见,因为在美洲大陆，在哥伦布到来之前-,在“前哥伦比亚美洲-,根本没有任何轮式交通工具存在。

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So, Columbus gets the glory of discovering America but it's up to debate if he actually did discover it.

所以，哥伦布获得了发现美洲的殊荣，但对于这个问题，人们仍然争论不休。

哥伦布的故事 - SpeakingMax英语口语达人

Columbus was the man who was attributed to having discovered America.

哥伦布被认为发现了美洲新大陆。

哥伦布的故事 - SpeakingMax英语口语达人

By the time of Columbus maize had already become the staff of life in the New World.

在哥伦布时期,玉米已成为美洲大陆的主食

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