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.
Cagayan de Oro
On January 10, 1899, Cagayan de Misamis joined the government of Emilio Aguinaldo and celebrated its independence from Spain. It was the second time the Aguinaldo government was declared and the new Philippine flag raised on the Mindanao island. By virtue of the 1898 Treaty of Paris, Spain ceded the Philippines to the United States; this caused friction and resulted in the Philippine-American War.