Final answer:
The day after the Grito de Dolores, Hidalgo began leading uprisings toward Mexico City, gaining force from local peasants. His movement's first actions were violent, causing former sympathizers among the Spanish and creole elites to turn against the rebellion for their own protection.
Step-by-step explanation:
The very next day after the Grito de Dolores, Miguel Hidalgo's call for rebellion against Spanish colonial rule, marked a significant turn. After his declaration on September 16, 1810, Hidalgo led uprisings through the local villages as he marched toward the capital, Mexico City. His forces rapidly grew as peasants and unemployed miners joined the cause, motivated by the promise of social reforms and an end to oppressive practices. However, the movement's initial violent actions, such as the sacking of towns and an attack that killed many of the city elite of Guanajuato, resulted in the creole and Spanish elites, who initially may have been sympathetic, uniting to protect their positions and lives against the rebellion.