People should READ before 'jumping'. Euphrates for example is a translated name which actually Quechua language URUTU meaning 'river of copper' something it's not unless it received ships made of reed importing tin, copper, etc from the Andes.
There's a difference from what Sitchin says. First this theory was presented 10 YEARS BEFORE MEN WENT TO THE MOON (that is..in case we were there!) and second this theory says Sumerians CAME OUT of Peru not that Peruvians and the rest of civilization imported from them. Recent data confirms Peruvian civlization is older than Sumerian. Even Sitchin got surprised in Peru "cain" (pronounced Ka-In in Mesopotamia) is inverted homophonous of In-Ka. In his book The Lost Realms he admits the Book of Jubilees says Cain's wife was his sister AWAN. Now T-AWAN-tinsuyo was Inca's empire name of the T meaning '4' like rivers of Eden. Eden was in Hevila the land of gold. We learned that's a name taken from post-Deluge stories whose brother was OPIR which is also an inverted homophonous of PIOR, PIROA, PERU related to river Biru and old amauta incas. Inca civilization never started as official ortodox system wants you to believe. C-14 is useless to date stone to say just a sample.