evidence: The Philippine claim to the territory of North Borneo, or as it is now called, Sabah, is not of recent origin. Rather it is based on an older claim to the area by the Sultans of Sulu. But the Sulu claim itself is suspect. A look at the background and an analysis of the status of North Borneo is therefore essential to understanding the nature of the dispute. [...] 61 Philippine Claim to North Borneo, Bureau of Printing, Manila 1964, Vol. 1, p. 13.Google Scholar 62 Vidal, J. Montero y, Historia de la pirateria malaya-mahometania en Mindanao, Jolo, y Borneo, Madrid, 1888Google Scholar; de la Concepcion, Historia general de Philippinas, v. XII, Manila 1788–1792Google Scholar; Ortiz, op. cit.; and H. de la Costa, op. cit., and Cesar Adib Majul, "Political and Historical Notes on the Old Sulu Sultanate," paper before the International Conference on Asian History, University of Hong Kong, September 1964.