History of Singapore
During World War 2, Singapore was conquered and occupied by the Japanese Empire from 1942 to 1945. When the war ended, Singapore reverted to British control, with increasing levels of self-government being granted, culminating in Singapore's merger with the Federation of Malaya to form Malaysia in 1963. However, social unrest and disputes between Singapore's ruling People's Action Party and Malaysia's Alliance Party resulted in Singapore's expulsion from Malaysia. Singapore became an independent republic on 9 August 1965.
Singlish
Singapore English derives its roots from 146 years (1819–1965) of British colonial rule over Singapore. Prior to 1967 the standard form of English in Singapore had always been British English and Received Pronunciation. After Singapore declared independence in 1965, English in Singapore began to take a life of its own, leading to the development of modern-day Standard Singapore English. At the same time, Singlish evolved among the working classes who learned English without formal schooling.