Prime Minister of Thailand Rajanubhab took over this role. In fact, the office most considered the precursor of that of the prime minister was the ancient office of "Samuha Nayok" (สมุหนายก), which was run by an "Akkhra Maha Senabodi" (อัครมหาเสนาบดี) or "chief minister in charge of civilian affairs". The first Prime Minister of Siam was Phraya Manopakorn Nititada, a judge. The title of the office was changed from "Prime Minister "of Siam"" to "Prime Minister "of Thailand"" in 1945 and then permanently with the renaming of Siam to Thailand in 1949. For most of its existence the office has been occupied by Army leaders;
Prime Minister of Ukraine first (and only) female Prime Minister of Ukraine. Before the re-appointment as Prime Minister of Mykola Azarov, Tymoshenko was the longest serving prime minister serving for two terms and a total of 1,029 days (days serving as acting Prime Minister are not included in these numbers). Since Azarov was re-appointed as prime minister on 13 December 2012, he has since broken Tymoshenko's record. Azarov resigned on 28 January 2014, due to public outcry and protests following the Euromaidan. He was succeeded up by Arseniy Yatsenyuk on 27 February 2014. Yatsenyuk announced he would resign as Prime Minister on 24 July