REMOVE

1. Atlas Map
2. Rivers
3. 1850

WHAT

1. World Atlas (3)
2. Data Visualization (2)

WHERE

1. Europe (2)
2. America (1)
3. Asia (1)

WHO

1. Johnston, Alexander Keith … (2)
2. W. Johnston (2)
3. William Blackwood (2)
4. Bar, J.C. (1)
5. Berghaus, H. (1)

WHEN

1. 1851 (1)