The Mapmaker of the Ottoman Sea

Written by Studio AM.

In 1513, the Ottoman sailor and mapmaker Piri Reis completed a map of the Atlantic world. Only part of it survives. The fragment shows western coasts of Europe and Africa, islands in the Atlantic, and parts of the Americas. Its painted ships, rulers, animals, and notes make it both a navigational document and a record of what one learned sailor believed about distant places.

Piri Reis did not claim to have measured every coast himself. Notes on the map describe his use of older and newer sources, including Portuguese charts, an Arabic map, ancient geography, and a chart connected in his account with Christopher Columbus. Combining them was skilled work, but it also carried their disagreements and errors forward. A copied coastline could become more convincing without becoming more accurate.

Its historical importance lies in showing how geographic information moved among sailors and empires around the Mediterranean and Atlantic. Maps were assembled arguments: a mapmaker selected reports, fitted different scales together, and decided which uncertainty to leave visible. Piri Reis later produced a detailed sailing guide to Mediterranean ports, showing his practical knowledge of the sea. His 1513 map preserves evidence of that network of observation, copying, travel, and judgment.

Questions

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  1. Question 1 of 4

    What is the main idea of the passage?

  2. Question 2 of 4

    Why does the author call maps “assembled arguments”?

  3. Question 3 of 4

    What does “fragment” mean in this passage?

  4. Question 4 of 4

    Which kind of source does the passage say Piri Reis used?

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