A three hour tour

[Pangloss62]

Wasn't Heyerdahl trying to figure out how people got to South America (and it's islands), from Polynesia and from Africa?

Actually, no. Heyerdahl was intrigued by iconongraphic similarities he saw between the primitive art of South America and that of the natives of the Polynesian Islands. He surmised, and went on to prove, that people could indeed travel across the Pacific from Peru to the Islands of the South Pacific. I don't think his thesis that Polynesia was settled by South Americans has been accepted, however. Maybe someone on this BBS knows the answer. I few minutes of googling would probably work too.