REMOVE

1. Case Map
2. Michigan
3. Indiana
4. Pennsylvania

WHAT

1. Atlas Map (1)
2. Classical (1)
3. Timeline (1)
4. World Atlas (1)

WHERE

1. Europe (1)
2. Mediterranean (1)

WHO

1. Baker, E. (1)
2. Bourne, E. (1)
3. Robert Wilkinson (1)
4. Wilkinson, Robert (1)

WHEN

1. 1821 (1)
2. 1823 (1)