Philippine Declaration of Independence
Following the end of World War II, the United States granted independence to the Philippines on 4 July 1946 via the Treaty of Manila. July 4 was observed in the Philippines as "Independence Day" until August 4, 1964 when, upon the advice of historians and the urging of nationalists, President Diosdado Macapagal signed into law Republic Act No. 4166 designating June 12 as the country's "Independence Day". June 12 had previously been observed as "Flag Day" and many government buildings are urged to display the Philippine Flag in their offices.
Pamitinan Cave
On April 12, 1895, Andres Bonifacio along with eight other katipuneros declared the Philippines independence from the Spanish empire inside of this cave. The walls still bear inscriptions of ""Viva la Independencia Filipina"" from the time of the Philippine Revolution. On June 21, 1996, Pamitinan cave was declared a historic site by the National Historical Commission of the Philippines.