Houghton Mifflin Social Studies
Lesson at a Glance Outline

Chapter 1, Lesson 2: The Expanding Horizon (pp. 10-15)

I. Merchants, Soldiers, Explorers, Pilgrims

II. Early Maps
    A. As travelers collected new information about lands they visited, mapmakers could make more accurate maps.

    B. As the Roman Empire declined, the work of the Roman mapmaker Ptolemy was forgotten in Europe.

    C. From the 1200s on, European mapmakers used the knowledge of scholars from the Muslim Empire and inventions from the East.

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