Czechoslovakia Československo Czech-language terms are followed by Slovak-language terms when the terms differ Sources Polity Style: 1918-1939 Polity Style: 1945-1992 Heads of State: 1918-1939 Heads of State: 1945-1992 Protectorate of Bohemia and Moravia Last updated on: 29 Nov 2023; URL: www.archontology.org/nations/czechoslovakia/index.php