On this site on May 28, 1898, between 10AM to 3PM, a bloody encounter ensued between Filipino revolutionary forces and approximately 270 Spanish marines. This battle, which resulted in the triumph of Filipino forces, was taken as a glorious occasion for General Emilio Aguinaldo to display the Philippine flag for the first time at Cavite Nuevo.
Because of the historical significance of this date, President Diosdado Macapagal issued Proclamation No. 374 declaring May 28 of each year as National Flag Day. This historical marker is installed by the grateful Filipino nation in recognition of the extraordinary bravery and heroism of the Filipino forces. Unveiled on May 28, 1998 in the observance of the centennial of the Battle of Alapan by His Excellency President Fidel V. Ramos.