Crappa Nui?

Ever watch the history channel special on the Rappa Nui and Easter Island? How do the come up with a complete history for an Island where there are no indigionous people? A history that includes the history of multiple tribes, how they managed to wipe each other out and desrtoy the forest and landscape that used to cover the island. Thats what they say.
They evidently have found a decsendant to tell them enough so they can guess at the rest. (i.e. make up a story to fit whatever p.c. malarky that they think will get an award or at least a grant) What I loved is where they went to a cave and said it had two meanings. The first is; The cave where men went to eat. The second meaning is; The cave where men go to be eaten. They left out the third and most important one The cave where gullible men go to believe anything they are told. The show was a surprise to me mostly by the fact of being on the history channel and not the sci-fi channel. The bird man cult they mentioned in this was right out of Buck Rodgers in the 25th Century. You won't find that show anywhere now except the Sci-fi channel and rightly so. This show deserves to be placed on the sci-fi channel with the rest of science fiction.