20th century history: c 1900 to c 2000 1 20th century, c 1900 to c 1999 1 Early 20th century c 1900 to c 1950 1 First World War 1 General & world history 1 General and world history 1 History 1 mehr ... History and Archaeology 1 History: specific events & topics 1 History: specific events and topics 1 Military history 1 Specific wars and campaigns 1 Time period qualifiers 1 c 1500 onwards to present day 1 c 1910 to c 1919 1 c 1914 to c 1918 (World War One period) 1 weniger ...