REMOVE

1. Sweet, C.A.
2. U.S.
3. 1866
4. Panama Canal

WHAT

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

WHERE

1. Czech Republic (1)
2. Germany (1)
3. Slovakia (1)

WHO

1. Bar, I.C. (1)
2. Berghaus, H. (1)
3. Hubbe, H. (1)
4. Justus Perthus (1)
5. Reichard, C.G. (1)

WHEN

1. 1834 (1)
2. 1837 (1)