Union of Soviet Socialist Republics
former USSR
USSR
Russia
Soviet Union
Ingush Autonomous Oblast
twenties
Commonwealth of Independent States
CIS
Mongolian People's Republic
Tunganistan
Sakartvelo
Georgia
Polish People's Republic
Soviet Russia
quadranscentennially
early Showa
Nagorno-Karabakh Autonomous Oblast
Soviet Socialist Republic
Gran Colombia
karbovanets
January 0
Ukrainian Soviet Socialist Republic
tricentennial
tricentenary
Kyzylorda
Peace of Westphalia
boreotropics
Russian Federation
war communism
Czechoslovakia
Second Spanish Republic
vigentennial
Kresy Wschodnie
Socialist Soviet Republic of Abkhazia
Age of Reptiles
Mesozoic
1930s
Uzbek SSR
2000s
Mesozoic era
Governorate-General
thirties
People's Democratic Republic of Ethiopia
dustbowl
Balhae
Great Depression
decennoval
Dzierzynszczyzna
Depression
quasquicentennial
Turkomen
nineties
Rif
Turkmen
Makhnovia
Turkmenia
Turkmenistan
sesquidecennial
Austria-Hungary
Siderian
Adyghe Autonomous Oblast
Nicholas II of Russia
Chechen Autonomous Oblast
Nicholas II
calendar year
Eurodeterrent
Russian Revolution
October Revolution
Rhyacian
civil year
Italian Social Republic
seventies
Korean Empire
Carboniferous
Galatia
Carboniferous period
mid-seventies
Marchlewszczyzna
Socialist Federal Republic of Yugoslavia
Ukrainian People's Republic
ostruble
Kyrgyz Soviet Socialist Republic
short twentieth century
Supreme Soviet
2080s
Cold War
Springtime of Nations
rublis
vicennium
abazi
year-end