Spatial Coverage
- Nigeria23
- North Dakota.23
- North Pacific Ocean.23
- Pacific Coast (Wash.)23
- Paris23
- Prussia, East (Poland and Russia)23
- Rome23
- Schuylkill County23
- Bahamas22
- Belarus22
- Berlin (Germany)22
- Black Sea22
- English Channel22
- Europe, Western22
- Fairfield County (Conn.)22
- Greene County22
- Hawaii.22
- Inland Sea (Japan)22
- Knox County22
- Manchuria (China)22
