From the paper "History Mystery: Ancients in America", by Stephen Wagner, About.com Guide"Many of us learned that rhyme, part of a longer history poem, when being taught in school that Christopher Columbus discovered America. Although nothing can be taken away from Columbus' daring voyage, he certainly was not the first to arrive on the shores of the Americas. For one thing, there were already people here - many Native American nations inhabited what later became known as North and South America and even the Caribbean islands where Columbus landed. Columbus probably wasn't even the first "white man" to make it here. It's fairly well documented that Icelander Leif Ericsson successfully sailed to North America in the year 1000 - almost 500 years prior to Columbus's voyage.
In fact, there's a growing amount of evidence suggesting that a lot of the familiar history of human exploration and "discovery" by our ancestors as we were taught it may be quite wrong. There is hard evidence of ancient civilizations making their mark in places where, according to traditionally accepted history, they just shouldn't be. Here's an overview of some of the most remarkable and fascinating cases."
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At http://paranormal.about.com/od/ancientanomalies/a/History-Mystery-Ancients-In-America.htm
