arrival of Bornean tribal groups in the Visayas (From Vijayapura a Srivijayan vassal state in Borneo) is celebrated in the festivals of the Dinagyang in Iloilo City, Ati-Atihan in Kalibo, Aklan, and Binirayan in San Jose de Buenavista, Antique. Foreign historians such as William Henry Scott maintains that the book contains a Visayan folk tradition. A contemporary theory based on a study of genetic markers in present-day populations is that Austronesian peoples from Taiwan populated the larger island of Luzon and headed south to the Visayas and Mindanao, and then to Indonesia and Malaysia, then to Pacific Islands and finally to the island of Madagascar, at the west of the Indian Ocean. The study, though, may not explain inter-island migrations, which are also possible, such as Filipinos migrating to any other Philippine provinces. There has even been backmigration to the island of Taiwan, as the historian Efren B. Isorena, through analysis of historical accounts and wind currents in the Pacific side of East and Southeast Asia, concluded that the Pisheye of Taiwan and the Bisaya of the Visayas islands in the Philippines, were closely related people as Visayans were recorded to have travelled to Taiwan from the Philippines via the northward windcurrents before they raided China and returned south after the southwards monsoon during summer. Administrative divisions Administratively, the Visayas is divided into 3 regions, namely Western Visayas, Central Visayas and Eastern Visayas. Each region is headed by a Regional Director who is elected from a pool of governors from the different provinces in each region. The Visayas is composed of 16 provinces, each headed by a Governor. A governor is elected by popular vote and can serve a maximum of three terms consisting of three years each. Western Visayas (Region VI) Western Visayas consists of the islands of Panay and Guimaras and the western half of Negros. The regional center is Iloilo City. Its provinces are: Aklan Antique Capiz Guimaras Iloilo Negros Occidental Central Visayas (Region VII) Central Visayas includes the islands of Cebu, Siquijor and Bohol and the eastern half of Negros. The regional center is Cebu City. Its provinces are: Bohol Cebu Negros Oriental Siquijor Eastern Visayas (Region VIII) Eastern Visayas consists of the islands of Leyte, Samar and Biliran. The regional center is Tacloban City. Its provinces are: Biliran Leyte Southern Leyte Eastern Samar Northern Samar Samar Scholars have argued that the region of Mimaropa and