Pedra Branca dispute no title, historic or otherwise, to it. The Colony of Singapore became a self-governing state in 1959, and left the British Empire to join the Federation of Malaysia in 1963. Two years later, in 1965, Singapore became a fully independent republic. In 1959, in an official publication regarding meteorological information collected on Pedra Branca, Malaya listed Horsburgh Lighthouse as a "Singapore" station together with the Sultan Shoal and Raffles Lighthouses. The lighthouse on Pedra Branca was described in the same way in a joint Malaysian and Singaporean publication in 1966, the year after Singapore left the Federation. In 1967, when
Imperial Federation Imperial Federation The Imperial Federation was a proposal in the late 19th and early 20th centuries to create a federal union in place of the existing British Empire. The project was championed by Unionists such as Joseph Chamberlain as an alternative to William Gladstone's proposals for home rule. At the time, the British Empire consisted of many colonies, some of which were largely self-governing dominions (Canada, Newfoundland, Australia, New Zealand, South Africa) and others were not (India, West Indies, Fiji). The future of the empire remained uncertain, as it was unclear what the end result would be if all colonies