Geographic Subject
United States
33
North Carolina
25
Virginia
18
New York (State)
15
Illinois
13
Delaware
12
Louisiana
12
Nigeria
11
Massachusetts
10
Mississippi
8
Pennsylvania
8
Soviet Union
8
Texas
8
Vermont
8
Florida
7
Michigan
7
Missouri
7
South Dakota
7
Alabama
6
New Hampshire
6
Rhode Island
6
South Carolina
6
West Virginia
6
Georgia
5
Ohio
5
Arkansas
4
Bahamas
4
Confederate States of America
4
India
4
Indiana
4
Iowa
4
Maine
4
Tennessee
4
Wisconsin
4
Arizona
3
Colorado
3
Indonesia
3
Kansas
3
Malawi
3
Maryland
3
Minnesota
3
New Jersey
3
New Mexico
3
Seychelles
3
Zambia
3
Anguilla
2
Antigua
2
Antigua and Barbuda
2
Belize
2
Connecticut
2
more ...