Science: Fuel & Flame

Who, or what, went whichaway?

The question has long agitated Americanists—the scholars and experts who specialize in the prehistory of the Western Hemisphere and who explore the origin and development of such high civilizations as the Mayans and the Incas.

Almost all Americanists agree that the original South and Central American Indians migrated from Asia. The majority thinks that they brought with them only the rock-bottom culture of nomadic hunters and thereafter built their own glittering cultures independently, without help from across the Pacific. The contrary view is that Asian cultures kept trickling...

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