the bodies of seven army officers were found buried in an old well in Lubang Buaya and the bodies were recovered. In the aftermath of the coup d'état attempt, the army, socio-political and religious groups blamed the coup attempt on the Communist Party of Indonesia, prompt a mass purge against leftists and communist sympathizers across the country. Around 500.000-1 million casualties were massacred. Soon, mass demonstrations and protests from Indonesian Students' Action Front against President Sukarno's government occurred. President Sukarno was notorious for his friendly approach towards the leftists, particularly the Communist Party of Indonesia. In the climax of the protests, President Sukarno signed Supersemar on 11 March 1966, effectively gave authority to Major General Suharto to restore order in the country. In 1967, President Sukarno was stripped of his political power by the Provisional People's Consultative Assembly (MPRS) and Major General Suharto became acting president. Later, he became president formally on 27 March 1968. Sukarno lived under house arrest until his death in June 1970. Japan and South Korea The Japanese economic miracle (1960s–1990s) Japan's remarkable economic economic growth between the post-World War II era and the end of the Cold War. During the economic boom, Japan rapidly became the world's second-largest economy at the time (after the United States). In 1960, Japan was wracked by the massive Anpo protests against the revision of the U.S.-Japan Security Treaty, resulting in the resignation of Prime Minister Nobusuke Kishi; Kishi's successor Hayato Ikeda began implementing economic policies, known as the Income Doubling Plan removed most of Japan's anti-monopoly laws and promised to double the size of Japan's economy within 10 years. Eisaku Satō became Prime Minister of Japan four years later, succeeding Ikeda due to health issues. The 1964 Summer Olympics were held in Japan, the first time the country hosted them and the first time that the Olympic Games were held in Asia. The start of operations for the world's first bullet train, the Tōkaidō Shinkansen) between Tokyo Station and Shin-Ōsaka Station, it is the oldest high-speed rail system in the world. The Second and Third Republics of Korea (1960–1972) The April Revolution were a mass protests in South Korea against President Syngman Rhee and the First Republic from 11 to 26 April 1960 which led to Rhee's resignation. The Second Republic was established as a parliamentary government under President Yun Bo-seon and Prime Minister Chang Myon. The Second Republic