Those are the events happened in the Philippine Nations
1521 - Magellan discovered the Visayas Islands
1898 - Luzon and other neighboring countries declared independence from Spain.
1901 - The whole Philippine Islands invaded by the Americans excluding the sultanates of Maguindanao and Sulu
1935 - Palawan declared independence
1949 - Guam and Palau became territories of Luzon
1954 - The islands of Leyte and Samar (from Visayas), Caraga, Masbate Island (from Bicol) and Romblon (from Luzon before the independence of Colonia) was unified into one country called San Lazaro.
1960 - Northern Luzon divided into three (Ilocandia, Cordillera and Northeastern Luzon)
1964 - Northeastern Luzon annexed by Luzon.
1965 - San Lazaro proclaimed into a communist country.
1968 - Colonia was declared independence from Luzon
1979 - San Lazaro was disestablish and Caraga was re-establish while the islands of Leyte and Samar was went back to Visayas, Masbate was went back to Bicol and Romblon unified to Colonia.