哥伦布前的美洲
NationalGeographicembarksonanexpeditionintothemysteriousworldofancientAmericanhistorytoshedadifferentlightonthehistoryoftheAmericas. Historybookstraditionallydepictthepre-ColumbusAmericasasapristinewildernesswheresmallnativevillageslivedinharmonywithnature.Butscientificevidencetellsaverydifferentstory:WhenColumbussteppedash...
