Cambodia
China
Fiji
India
Indonesia
Iran
Japan
Kazakhstan
Kiribati
Laos
Marshall Islands
Micronesia
Mongolia
Nepal
Niue
Solomon Islands
Sri Lanka
Thailand
Tibet, China
Tokelau
Uzbekistan
Vietnam
Western Samoa
Tehran-North Iran, 1970. Typical of the rural migration to the urban centers. Only 30% of the population was literate in 1970. Photo by Joel Hettger.