The Indonesian Christian Church (GKI, originally: Gereja Kristen Indonesia) is an Indonesian Church of Presbyterian denomination. The church's theology is Calvinist. GKI was established in continuity with the Indonesian Christian Church in West Java, Central Java and East Java. These three denominations were originally independent, each arising from separate missionary initiatives conducted by local and foreign missionaries. The first of these denominations to be established, later coming to be known as the Indonesian Christian Church East Java, was incorporated on 22 February 1934. Six years later, and coming to be known as the Indonesian Christian Church West Java, the second denomination was incorporated on 24 March 1940. Finally, on 8 August 1945, the Indonesian Christian Churches Central Java was incorporated. Since 27 March 1962, the three denominations have been united as the Indonesian Christian Church, with the overall governing responsibility maintained by the General Synod (Sinode Am), which aims to co-ordinate united efforts towards common goals.