900	HISTORICAL RESEARCH. WORLD HISTORY
909	World history. European history
909.1	Ancient history
909.2	History of the middle-ages 400-1499
909.3	History of the early modern period 1500-1788
909.4	History of the later modern period 1789-1913
909.5	Recent history 1914-1938
909.51	History of the First World War 1914-1918
909.6	Modern history 1939-
909.61	History of the Second World War 1939-1945
910	HISTORICAL RESEARCH METHODS. ARCHAEOLOGY. CULTURAL HISTORY
910.1	Historical research methods
911	Auxiliary disciplines of historical research
911.1	General chronology and chronography
911.4	Diplomatics
911.5	Numismatics
911.6	Heraldry. Flags
911.7	Sigillography
911.8	Orders. Titles. Medals
914	Historical maps. Historical geography
915	General archaeology
915.1	Lost continents. Influence of extra-terrestrial cultures on the earth's ancient history
916	Ancient history and archaeology of Egypt and South-West Asia
917	Ancient history and archaeology of Greece
918	Ancient history and archaeology of the Roman Empire
919	General cultural history
919.1	Ancient cultural history
919.2	Cultural history of the middle-ages 400-1499
919.3	Cultural history of the early modern period 1500-1788
919.4	Cultural history of the later modern period 1789-1913
919.5	Recent cultural history 1914-1938
919.6	Modern cultural history 1939-
919.8	History of eroticism
919.9	History of fashion
920	FINLAND'S HISTORY
921	Ancient history to 1154
922	Middle ages 1155–1522
923	Reformation 1523–1617
924	Sweden’s period as a great power 1618–1721
925	The Age of Freedom and the Gustavian period 1722–1809
926	Autonomy 1810-1917
927	Independence 1917–1938
927.1	The 1918 War
928	Independence 1939–
928.1	The Wars 1939-1945
929	Local history
929.11	Helsinki. The metropolitan area
930	NORDIC HISTORY
930.1	Pre-history and ancient history
931	Sweden's history
932	Sweden’s history 1060–1522
933	Sweden’s history 1523–1718
934	Sweden’s history 1719–1809
935	Sweden’s history 1810–
935.1	Sweden’s history 1810–1913
935.2	Sweden’s history 1914–1938
935.3	Sweden’s history 1939–
936	Sweden’s local history
937	Denmark's history
938	Norway's history
939	Iceland's history
940	GERMANY'S HISTORY
941	Germany’s pre- and ancient history to 843
942	Germany’s middle ages 843–1518
943	Germany’s history 1519–1647
944	Germany’s history 1648–1814
945	Germany’s history 1815–1913
946	Germany’s history 1914–1945
946.1	Germany’s history 1914–1932
946.2	Germany’s history 1933–1938
946.3	Germany’s history 1939–1945
948	Germany’s history 1946–
950	BRITAIN'S HISTORY
951	Britain’s pre- and ancient history to 1066
952	Britain’s middle ages 1067–1484
953	Britain’s history 1485–1687
954	Britain’s history 1688–1814
955	Britain’s history 1815–1913
956	Britain’s history 1914–1938
957	Britain’s history 1939–
958	Ireland's history
958.1	History of the Irish Republic (Eire)
958.2	History of Northern Ireland
960	FRANCE'S HISTORY
961	France’s pre- and ancient history to 986
962	France’s middle ages 987–1493
963	France’s history 1494–1588
964	France’s history 1589–1788
965	France’s history 1789–1814
966	France’s history 1815–1913
967	France’s history 1914–1938
968	France’s history 1939–
970	HISTORY OF OTHER EUROPEAN COUNTRIES
971	History of Russia
971.2	Russia's history to 1917
971.21	Russia’s pre-history and the middle ages
971.22	Russia’s history 1682–1856
971.23	Russia’s history 1857–1917
971.7	History of the Soviet Union 1917-1991
971.71	History of the Soviet Union 1917–1938
971.72	History of the Soviet Union 1939–1945
971.73	History of the Soviet Union 1945-1991
971.8	Russia's history 1992-
971.9	History of the Ukraine, Belorussia and Moldova (formerly Moldavia)
971.91	History of the Ukraine
971.92	History of Belorussia
971.93	History of Moldova
972	Poland's history
973	History of the Baltic countries
973.1	Estonia's history
973.3	Latvia's history
973.4	Lithuania's history
974	History of Austria and Hungary
974.1	Austria's history
974.2	Hungary's history
975	Switzerland's history
976	The Netherlands' history
977	Belgium's history
978	History of other Central European countries
978.1	History of the Czech Republic and Slovakia
978.11	The Czech Republic's history
978.12	Slovakia's history
978.2	Rumania's history
979	History of the Southern European countries
979.1	Spain's history
979.2	Portugal's history
979.3	Italy's history
979.4	Modern history of Greece
979.5	History of the former Yugoslavian region
979.51	Slovenia's history
979.52	Croatia's history
979.53	Bosnia-Herzegovina's history
979.54	Serbia's history
979.55	Macedonia's history (in the former Yugoslavia)
979.56	Montenegro's history
979.57	Kosovo's history
979.6	Bulgaria's history
979.7	Albania's history
979.8	Malta's history
980	HISTORY OF OTHER CONTINENTS
981	Asia's history
981.1	South-West Asia's history
981.11	Israel's and Palestine's history
981.2	South Asia's history
981.3	South-East Asia's history
981.4	Central Asia's and East Asia's history
981.5	Japan's history
981.6	Historical works on the Asian countries within the Commonwealth of Independent States
985	History of Africa
985.1	History of North Africa
985.2	History of West, East and Central Africa
985.3	History of South Africa
987	History of the Americas
987.1	Canada's history
987.2	History of the United States of America
987.21	History of the United States of America to 1775
987.22	History of the United States of America 1775–1860
987.23	History of the United States of America 1861–1938
987.24	History of the United States of America 1939–
987.3	History of Central America
988	History of South America
989	History of Australia, Oceania and the Polar regions
990	BIOGRAPHIES. MEMOIRS. GENEALOGY
990.03	Biographical reference books
990.1	Finland
990.103	General biographical reference books concerning Finland
991	Philosophers. Psychologists. Figures in pedagogy
991.1	Finland
992	Religious and denominational figures
992.1	Finland
993	Figures in society, the mass media, transport and defence
993.1	Finland
994	Geographers. Explorers. Discoverers. Ethnologists Anthropologists
994.1	Finland
995	Natural scientists. Mathematicians
995.1	Finland
996	Figures in medicine, production, technology, commerce and industry
996.1	Finland
997	Figures in the humanities
997.1	Finland
999	Family history. Family research
999.1	History and metholodology of family research