Emilio Aguinaldo Day and the Philippine Army Founding Anniversary are observed in the Philippines every March 22. This date marks the birthday of Emilio Aguinaldo, a key figure in Philippine history who became the country's first president at the age of 29. Aguinaldo was born in Cavite and played a significant role in the Philippine Revolution against Spanish rule, leading to the establishment of the Philippine Revolutionary Army, the precursor to the modern Philippine Army. The Tejeros Convention, held on March 22, 1897, was pivotal as it not only elected Aguinaldo as the president of the revolutionary government but also officially organized the rebel groups into the Philippine Revolutionary Army. While Emilio Aguinaldo Day is a special non-working holiday in Cavite, the Philippine Army Founding Anniversary is a working holiday celebrated nationwide. These commemorations honor Aguinaldo's contributions to the nation's independence and the establishment of its military forces.