This will help narrow down the age of your globe by several centuries. Below is a listing of important discoveries and political names or border changes that are noted on most globes. We have created this detailed list by combining information provided by the Vienna Globe Museum (of the National Library of Austria) and dating information of globe manufacturers such as Cram’s and Replogle. 1912 – Albania independent; Arizona and New Mexico become part of the United States. 1924 – Petrograd changes to Leningrad; Christiana, Norway renamed Oslo. 1926-31 – Central Australia was created out of Northern Territory. 1931 – Japan invades Manchuria and renames it Manchukuo (until 1945). 1935 – Persia becomes Iran (on US made Globes, German Globes continued calling in Persia for a few more years). 1949 – Newfoundland and Labrador join Canada; Korea divided into North and South. 1956 – Morocco, Tunisia independent; “Anglo Egyptian Sudan” becomes Sudan. 1981 – Belize gains independence from the UK and Guatemala. 1992 – Yugoslavia dissolves into 5 new countries: Bosnia-Herzegovina, Croatia, Macedonia, Slovenia, Yugoslavia. 1908 – Bulgaria becomes independent kingdom; Congo Free State becomes Belgian Congo. 1911 – Rhodesia divided into North and South; Morocco becomes a French colony. 1923 – Turkey becomes an independent Republic; Tannu-Tuva independent; Palestine established independent from Transjordan. 1940 – Estonia, Latvia, Lithuania are annexed by Soviet Union. 1944 – Lebanon independent from Syria; Tannu-Tuva annexed by USSR. 1948 – Israel created (before 1948, maps say “Palestine”); Republic of Ireland independent; Ceylon and Burma become independent from India. 1954 – Former French Indo-China becomes Vietnam, Laos, and Cambodia. 1991 – Soviet Union dissolves, 15 countries become independent: Armenia, Azerbaijan, Belarus, Estonia, Georgia, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine, Uzbekistan.The difficulties in determining a precise age for your globe come from many different variables.While the dates for most political changes can be precisely determined, the time lag for a given manufacturer to implement the change into their product lineup is less easy to determine. 1918 – End of World War 1: Austrian-Hungarian Empire ceases to exist.World Globe Universe has prepared this resource to assist you in learning about the age of your globe.Find out more in our Cookies & Similar Technologies Policy.The three globes shown here were produced by James Wilson, America's first commercial globe maker. 1895 – Rhodesia replaces Ndebele territory of Zimbabwe. 1962 – Uganda, Algeria, Jamaica, Trinidad & Tobago independent. 1964 – Federation of Rhodesia and Nyasaland dissolve and become Malawi and Zambia; Tanganyika and Zanzibar merge to form Tanzania. 1968 – Equatorial Guinea , Mauritius and Swaziland gain independence. 1971 – Bahrain independent; Congo changes to Zaire. 1890 – Indian Territory established in Eastern Oklahoma. 1960 – French West Africa, French Equatorial Africa, Belgian Congo and other African colonies cease to exist, creating over 15 independent countries, including Niger, Chad, Somalia, Congo, Nigeria. 1961 – Sierra Leone, Tanzania (Tanganyika) independent; Kuwait independent. 1967 – French Somaliland changes to Afars & Issas (Fr.). 1974 – Guinea-Bissau independence; Grenada independence. 1975 – Angola (formally Portuguese West Africa) and Mozambique independent.