Prime Minister of Thailand Prime Minister of Thailand The Prime Minister (; ; ) of Thailand is the head of government of Thailand. The prime minister is also the chair of the Cabinet of Thailand. The post has existed since the Revolution of 1932, when the country became a constitutional monarchy. Prior to the coup d'état, the prime minister is nominated by a vote in the Thai House of Representatives by a simple majority, and is then appointed and sworn-in by the King of Thailand. The house's selection is usually based on the fact that either the prime minister is the leader of the
Prime Minister of Iran Prime minister of Iran in 1965 and remained in office until 1977. Shapour Bakhtiar was the last prime minister of Pahlavi era. After the Iranian Revolution of 1979, Ayatollah Khomeini installed Mehdi Bazargan as the Prime Minister of an interim government, which served until November 1979. The government resigned during the Iran hostage crisis, but mentioned that it has not been the sole reason, and the decision for mass resignation had been reached one day before the invasion of the United States embassy by the Iranian students. The post was left empty until Abolhassan Banisadr became president in January 1980