Houghton Mifflin Social Studies
Lesson at a Glance Outline

Chapter 3, Lesson 4: Interpreting Sources (pp. 80-83)

I. Evidence of Cultural Contact

II. Evidence of Independent Invention

    A. Different cultures can make similar developments without coming into contact with each other.

    B. Similar developments can arise when people in different places work to solve similar problems.

    C. New methods of evaluating and understanding evidence can change archaeologists' interpretations.

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