Answer
Napoleon changing the government leadership in Spain to his brother.
Step-by-step explanation
Hidalgo belonged to a secret society supporting independence from Spain in San Miguel (near Dolores). When the plot was betrayed to the Spanish, several members were arrested. Warned to flee, Hidalgo decided instead to act promptly. In 1810, he rang the church bell in Dolores to call his parishioners to an announcement of revolution against the Spanish. Hildago called for Mexico to rise up against the Spanish for independence and racial equality this was due to Napoleon changing the government leadership in Spain to his brother.