Indonesia: Polity Style: 1950-2023 19 May 1950 charter of agreement between the governments of the United States of Indonesia and the Republic of Indonesia on the formation of a unitarian state 17 Aug 1950 Provisional Constitution of the unitarian Republik Indonesia becomes operative (passed 15 Aug 1950) 17 Aug 1950 - Republik Indonesia Last updated on: 25 Jun 2009 20:00:00