The city is historically significant because it was the center of activities for the Katipunan, the secret militant society that launched the Philippine Revolution during the Spanish occupation of the Philippines. In a house in Caloocan, secret meetings were held by Andrés Bonifacio and his men, and it was in the city's perimeters where the first armed encounter took place between the Katipunan and the Spaniards. The revolution erupted after the “Cry of Balintawak” led by Andres Bonifacio against their oppressors on August 30, 1896.