This map of Europe and the Mediterranean region was made in 1513 by Muslim cartographer Piri Reis, who lived in the Ottoman Empire. Use this map to answer the following question: Piri Reis map of Europe and the Mediterranean, 1513.
Public Domain

What could a 21st century historian learn from this primary source?

The extent of 16th century Islamic travel in Europe and the Mediterranean
The extent of 16th century Indian travel in Europe and the Mediterranean
The degree to which borders between European countries have shifted
Ways in which Ottoman knowledge of geography was accurate and inaccurate