Postage stamps and postal history of Nigeria the British Commonwealth and a new definitive set was issued on 1 November 1965. Between 1960 and 1961 Nigerian definitives of 1953-57 were overprinted "CAMEROONS/U.K.T.T." for use in Southern Cameroons of the British Mandate territory of British Cameroons. This issue was also valid for use in Northern Cameroons until it joined Nigeria. In 1961, Southern Cameroons became part of Cameroon. Between 30 May 1967 and 15 January 1970, the region of Biafra attempted to secede from Nigeria and issued their own postage stamps. Eventually, after a bloody civil war they rejoined Nigeria. Postage stamps and postal history of Nigeria This
Guyana (1966–1970) The Republic of Guyana came into existence on 23 February 1970, when Guyana became a republic within the Commonwealth. Forbes Burnham held office as prime minister (and head of government) of Guyana during this period. Following the abolition of the monarchy, former Governor-General Sir Edward Luckhoo provisionally became the first President of Guyana. Guyana (1966–1970) Guyana was a predecessor to the modern-day Republic of Guyana and an independent state that existed between 1966 and 1970. British rule ended on 26 May 1966, when Guyana was given independence from the United Kingdom by the Guyana Independence Act 1966, which transformed British