Naval weapon legacy of Greek fire

Timeline

1. c. 670–720Constantinople · ConstantinopleIn the late 7th century the Byzantine chemist Callinicus (traditional attribution) invented Greek fire, attacking enemy ships by spraying burning liquid through siphons. In the naval battles of Constantinople in 678 and 717, Greek fire devastated the Arab fleets and became the empire's decisive weapon of sea defense.
2. 900–1100Crete · CreteIn the 10th–11th centuries the Byzantine fleet continued to equip Greek fire in the eastern Mediterranean against Arab pirates and Norman invaders. The formula and manufacturing techniques were monopolized by royal workshops and known to only a few imperial chemists, ensuring technological secrecy for centuries.
3. 1211–1220Eastern Mediterranean · Eastern MediterraneanDuring the Fifth Crusade in the 1210s, Byzantine and Venetian and other maritime powers operated in the eastern Mediterranean, and the Greek fire tradition influenced navies' emphasis on incendiary weapons. Though the Venetian fleet lacked the Greek fire formula, it developed catapult and fire-attack tactics to contest control of sea lanes.
4. 1200–1400Constantinople · ConstantinopleAfter the 13th century Byzantine power declined and the Greek fire formula was gradually lost; the craft was entirely extinguished after the fall of Constantinople in 1453. However, its naval incendiary concepts influenced Arab, Persian, and later European firearms development, becoming an important legacy of medieval military chemistry.