Delight's Early civilization

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Across
  1. 2. The name for the bridge that early humans crossed into north america
  2. 4. A Land between two rivers that had fertile land and is considered the cradle of civilization.
  3. 6. Person who learns about past cultures by digging up artifacts
Down
  1. 1. One of the four earliest civilizations in the world lies on the Nile river
  2. 3. An early civilization in Mexico that practiced human sacrifice to the gods
  3. 4. An early civilization that existed in Central America and built temples
  4. 5. An early civilization in South America that built roads and farmed the mountains