REMOVE

1. Data Visualization
2. Statistical
3. Separate Map
4. Political
5. Topography

WHAT

1. Diagram (2)
2. Historical (2)
3. Pictorial map (2)

WHERE

1. World (2)
2. Belgium (1)
3. Korea (1)

WHO

1. Denoyer-Geppert Company (2)
2. News Map of the Week, Inc … (2)

WHEN

1. 1949 (1)
2. 1950 (1)
3. Korean War (1)