Region
United States
637
Great Britain
12
Southern States
8
Soviet Union
5
Asia
4
New York
4
New York (State)
4
États-Unis
4
America
3
Arab countries
3
Austria
3
Confederate States of America
3
Europe
3
Northeastern States
3
West (U.S.)
3
California
2
Cuba
2
Foreign countries
2
Japan
2
Los Angeles (Calif.)
2
Lowell
2
Massachusetts
2
Niagara Falls (N.Y. and Ont.)
2
Oak Ridge
2
Oak Ridge (Tenn.)
2
Oceania
2
Tennessee
2
Vienna
2
Alabama
1
Arkansas
1
Astronautics
1
Atomic bomb
1
Chicago
1
Chicago (Ill.)
1
England
1
Hawaii
1
Illinois
1
Islands of the Pacific
1
Latin America
1
Little Rock
1
Montgomery
1
New York (N.Y.)
1
Ozark Mountains
1
USA
1