I still believe the Phonecians were first to the New World. There was, if I remember correctly, pictoglyphs in Central America depicting visitors who were not the typical Mayan. In fact, the pictoglyph showed shoes with points curled and beards that looked Sumerian.
There was also a clay tablet found in South America ( can't remember the source ) that had cunieform writing on it.
Lastly, the infamous Piri Reis map, which depicted the Antarctic continent as recently verified by satellite.
