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Subject (Region)
- District of Columbia168
- Great Britain139
- United States106
- France103
- Mexico88
- Spain75
- China70
- New Mexico Territory (1850-1912)54
- Utah Territory (1850-1896)54
- Canada53
- Russia (to 1921)51
- Germany (to 1949; 1990- )47
- Alaska, Department and District of (1867-1912)46
- Brazil45
- Yellowstone National Park42
- Cuba41
- California39
- Turkey37
- Greece36
- Japan36