I've never believed that Columbus discovered America. I believe that he must've followed someone else to the coasts of America and then on his return he just popularised about the way. He should surely be thought as the informer, not as the one who discovered. DNA evidence is proving to be a myth buster for history.
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We know Scandinavians found America hundreds of years earlier. They even lived in North America.
There may have been Portuguese sailors who saw North America after getting lost, but since they didn't know where they were they couldn't explain where they had gone.
The major ocean current in the North Atlantic basically flows in a circle from Spain/Portugal, down the North African coast, then across to the Caribbean, before coming back along the North American coast and back to Iberia.
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This is completely legit. That's what I understood and questioned my Geography teacher in class 12th. He was a practical man and gave me the exact same answer a day after I asked him.
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