3

lhsblogs.typepad.com · Irrigation systems, the domestication of the llama, metallurgy, and shared labor oblig- ations helped provide a firm economic foundation for powerful, centralized

  • Upload
    others

  • View
    2

  • Download
    0

Embed Size (px)

Citation preview

Page 1: lhsblogs.typepad.com · Irrigation systems, the domestication of the llama, metallurgy, and shared labor oblig- ations helped provide a firm economic foundation for powerful, centralized
Page 2: lhsblogs.typepad.com · Irrigation systems, the domestication of the llama, metallurgy, and shared labor oblig- ations helped provide a firm economic foundation for powerful, centralized
Page 3: lhsblogs.typepad.com · Irrigation systems, the domestication of the llama, metallurgy, and shared labor oblig- ations helped provide a firm economic foundation for powerful, centralized