| Former name | Modern name | Date changed | % Correct |
|---|---|---|---|
| Persia | Iran | 1932 | 96%
|
| Constantinople, Turkey | Istanbul, Turkey | 1930 | 95%
|
| Peking, China | Beijing, China | 1980's | 93%
|
| Siam | Thailand | 1939 | 89%
|
| Zaire | Democratic Republic of the Congo | 1997 | 87%
|
| Bombay | Mumbai | 1995 | 87%
|
| Ceylon | Sri Lanka | 1972 | 86%
|
| Edo, Japan | Tokyo, Japan | 1868 | 86%
|
| Saigon, Vietnam | Ho Chi Minh City, Vietnam | 1975 | 84%
|
| Rhodesia | Zimbabwe | 1980 | 79%
|
| Abyssinia | Ethiopia | 1941 | 76%
|
| South-West Africa | Namibia | 1990 | 76%
|
| Calcutta | Kolkata | 2001 | 71%
|
| British Honduras | Belize | 1973 | 69%
|
| Formosa | Taiwan | 1684 | 67%
|
| Nanking | Nanjing | 1980's | 48%
|
| Cape Verde | Cabo Verde | 2013 | 46%
|
| Madras | Chennai | 1996 | 44%
|
| Canton | Guangzhou | 1980's | 43%
|
| Cathay | China (North) | ~1605 | 40%
|
| Gilbert Islands | Kiribati | 1979 | 31%
|
| Bangalore | Bengaluru | 2006* | 29%
|
| Upper Canada | Ontario | 1840 | 24%
|