REMOVE

1. Exploration Book
2. Arizona
3. Texas
4. 1810

WHAT

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

WHERE

1. Austria (1)
2. Baltic Countries (1)
3. Eastern-Central Europe (1)
4. Poland (1)
5. Russia (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. 1833 (1)
2. 1837 (1)