- Founded 13th and 14th Centuries
- Established June 23, 1635:
- June 23, 1635 should be symbolically known as “Dia del Chavacano de Zamboanga.” Why you might ask? This was the day that a permanent foothold was laid on Zamboanga by the Spanish government with the construction of the San José Fort, and the subsequent evolution and proliferation of a unique dialect/language based on ancient Creole Spanish that is called Chavacano de Zamboanga.
"Soon, the construction of one of the finest and most important Spanish forts in the East was put into effect. Upon careful choice of locating the fort at the southern-most tip of the peninsula for its military vantage point of the main water routes that converges in what's called today the Basilan Straights, the foundation of the grand fortress of Fuerza de San José was laid by Father Melchor de Vera, a Jesuit priest and engineer of the Spanish army, on June 23, 1635, establishing a permanent Spanish presence here brick-by-brick.2 Zamboanga City, as we know it today, was thus born.[1]"
- Established as Chartered City: October 12, 1936