1758 Transfer of the See of Nueva Segovia from Lallo, Cagayan to Vigan by Bp. Juan de la Fuente Y Yepez, Sec.
1762 The Silang Revolt: Diego and Gabriela, Ilocano couple freedom fighters.
1783 Construction of the Palacio Episcopal in Vigan by Bp. Juan Ruiz de San Agustin y Garcia, ORSA.
1790 Construction of the Cathedral de Vigan by Bp. Juan Ruiz de San Agustin y Garcia, ORSA.
1818 Creation of Ilocos Sur and Ilocos Norte as separate provinces.
1822 Foundation of the Seminario de la Immaculada Concepcion in Vigan by Bp. Francisco Alban, OP