REMOVE

1. Data Visualization
2. Political
3. Diagram
4. World
5. United States

WHAT

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

WHERE

1. Ottoman Empire (1)
2. West (U.S.) (1)
3. Yugoslavia (1)

WHO

1. News Map of the Week, Inc … (3)
2. American Airlines Inc. (2)
3. Bauer, Hubert A. (Hubert … (2)
4. Denoyer-Geppert Company (1)

WHEN

1. 1950 (2)
2. 1944 (1)