REMOVE

1. Data Visualization
2. Ireland
3. England
4. Scotland

WHAT

1. Pictorial map (2)
2. Atlas Map (1)
3. Communications (1)
4. Composite Map (1)

WHERE

1. Wales (3)
2. British Isles (2)

WHO

1. Bartholomew, J. G. (1)
2. Emslie, John (1)
3. Forbes, Edward (1)
4. George Newnes, Limited (1)
5. Gill, Leslie MacDonald, 1 … (1)

WHEN

1. 1850 (1)
2. 1852 (1)
3. 1907 (1)
4. 1939 (1)