query: When was Malaysia founded?
passage: History of Malaysia
After reviewing the Cobbold Commission's findings, the British government appointed the Landsdowne Commission to draft a constitution for Malaysia. The eventual constitution was essentially the same as the 1957 constitution, albeit with some rewording; for instance, giving recognition to the special position of the natives of the Borneo States. North Borneo, Sarawak and Singapore were also granted some autonomy unavailable to the states of Malaya. After negotiations in July 1963, it was agreed that Malaysia would come into being on 31 August 1963, consisting of Malaya, North Borneo, Sarawak and Singapore. The date was to coincide with the independence day of Malaya and the British giving self-rule to Sarawak and North Borneo. However, Indonesia and the Philippines strenuously objected to this development, with Indonesia claiming Malaysia represented a form of "neocolonialism" and the Philippines claiming North Borneo as its territory. The opposition from the Indonesian government led by Sukarno and attempts by the Sarawak United People's Party delayed the formation of Malaysia.[103] Due to these factors, an eight-member UN team was formed to re-ascertain whether North Borneo and Sarawak truly wanted to join Malaysia.[104][105] Malaysia formally came into being on 16 September 1963, consisting of Malaya, North Borneo, Sarawak, and Singapore. In 1963 the total population of Malaysia was about 10 million.
passage: Indonesia–Malaysia confrontation
Prior to the Manila meeting the Malayan Government had set 31 August as the date on which Malaysia would come into existence, (coinciding with Malaya's independence day celebrations of 31 August) but during the Manila negotiations it was persuaded by the Indonesian and Philippine Governments to postpone Malaysia's inauguration until 15 September 1963 by which time a UN mission was expected to report on whether the two Borneo colonies supported the Malaysia proposal. However, following the conclusion of the Manila talks, the Malayan Prime Minister Tunku Abdul Rahman announced that the proposed Malaysian state would come into existence on 16 September 1963, apparently irrespective of the latest UN report.