REMOVE

1. Coal
2. Covers
3. Frieser, A.
4. David, T.W.E.
5. 1913

WHAT

1. Composite Map (1)
2. World Atlas (1)

WHERE

1. Africa (1)
2. Arabian Peninsula (1)
3. East Africa (1)
4. Egypt (1)
5. Madagascar (1)

WHO

1. Bar, J.C. (1)
2. Baumgarten, F. (1)
3. Behrens, W. (1)
4. Berghaus, H. (1)
5. Edler (1)

WHEN

1. 1850 (1)
2. 1851 (1)