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- 141st meridian westThe meridian 141° west of Greenwich is a line of longitude that extends from the North Pol
- 169th meridian westThe meridian 169° west of Greenwich is a line of longitude that extends from the North Pol
- 1945 territorial changes of PolandAt the end of World War II, Poland underwent major changes to the location of its internat
- 1989 Soviet censusLast census to take place in the USSR
- 19th meridian westThe meridian 19° west of Greenwich is a line of longitude that extends from the North Pole