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.
Philippines–Poland relations
With Philippine independence from the United States in 1946 and the eventual establishment of the communist People's Republic of Poland in 1952, relations between the two countries were severed owing to political differences. However, following Soviet–American détente, relations between the two countries were normalized with the formal establishment of diplomatic relations on September 22, 1973, which culminated with the visit of former President Diosdado Macapagal to Poland in 1974, the first visit to the country by any member of the Philippine government.