The flag was formally unfurled during the proclamation of independence on June 12, 1898 in Kawit, Cavite. However, a Manila Times article by Augusto de Viana, Chief History Researcher, National Historical Institute, mentions assertions in history textbooks and commemorative rites that the flag was first raised in Alapan, Imus, Cavite, on May 28, 1898, citing Presidential Proclamation No. 374, issued by then-President Diosdado Macapagal on March 6, 1965. The article goes on to claim that historical records indicate that the first display of the Philippine flag took place in Cavite City, when General Aguinaldo displayed it during the first fight of the Philippine Revolution.