Do you believeAncientGreeks could have discovered America long before Columbus & the vikings?

USLegionary

Pytheas of Massalia (southern france) is said to have taken an exploration in 306 BC around the period the Greeks were setting up colonies all over the Mediterranean from Western Spain to the black sea and exploring, its said he lead an expedition to Britain and sailed to Iceland and then to greenland.

There may even have been Greeks in the Americas as far back as myceanean and minor times. The Romans and carthaganians may also have been aware of the Americas.

https://greekreporter.com/2012/04/21/researcher-claims-ancient-greeks-made-it-to-america-before-columbus/

To me it seems very possible that ancient civilisations like the Greeks, carthaganians, Romans, Egyptians, Persians, Phoenicians, Chinese may have had knowledge of the Americas and that Italian Christopher Columbus along with sailors of the Knight's of Christ (Portuguese Templars) had been able to gain ancient knowledge through the Vatican, Byzantine, Muslims, Norse etc of a Continent to the west.

Do you believeAncientGreeks could have discovered America long before Columbus & the vikings?
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