National Flag Day is celebrated annually on May 28 in the Philippines as a national holiday, commemorating the country's independence from Spanish rule. This day marks the first hoisting of the Philippine flag in 1898, symbolizing the formation of the nation’s first republic. The flag features a white triangle representing equality and unity, a blue field symbolizing peace and justice, and a red field denoting bravery and patriotism. The observance of this day often involves patriotic displays and ceremonies that honor the flag as a symbol of hope and nationalism, particularly during the colonial era. The flag itself has a rich history, having been designed by Emilio Aguinaldo and representing the Filipino people's struggle for independence.