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.
Great Seal of the Philippines
After the dissolution of the Philippine Commonwealth and the granting of full independence of the Philippines by the United States in 1946. A new coat of arms was adopted along with a great seal. The seal was composed of the seal inscribed in a double marginal circle with the text "Republic of the Philippines". The seal had little revisions. In 1978, President Ferdinand Marcos, included the motto "Isang Bansa, Isang Diwa" and the inscription of the seal was made into "Republika ng Pilipinas, Opisyal na Tatak"