Features a brief account of the 12th century Arab geographer's accomplishments.

Read about early Islamic explorers and geographers, and find details of the development of the study of geography.

Read about some of the projects directed by this American geographer.

Learn about the career and writings of this American cartographer.

Find a brief personal and professional biography of the founding father of political geography.

Discover a summary of Ritter's contributions to the study of geography.