The actual battle of San Jacinto lasted less than twenty minutes, but it was in the making for six years. It had its prelude in the oppressive Mexican edict of April 6, 1830, prohibiting further emigration of Anglo-Americans from the United States to Texas; in the disturbance at Anahuac and in the battle of Velasco, in 1832; in the imprisonment of Stephen F. Austin, the Father of Texas, in Mexico in 1834.