Don Miguel Gregorio Antonio Ignacio Hidalgo-Costilla y Gallaga Mandarte Villaseñor, more commonly known as Don Miguel Hidalgo y Costilla or simply Miguel Hidalgo, was a Mexican Catholic priest , was involved in planned revolt against the Spanish rulers of Mexico and when he got wind of his impending arrest, he preempted the authorities and ordered his brother to take a contingent of armed rebels and free the political prisoners being held in the city jail on the night of September 15, 1810. The next day Hidalgo ordered the church bell to rung while he, Ignacio Allende and Juan Aldama went out in front of the church and urged the townsfolk to revolt.
To the north, the United States had won its independence decades before, and many Mexicans felt they could, too. In 1808, Creole patriots saw their chance when Napoleon invaded Spain and imprisoned Ferdinand VII. This allowed Mexican and South American rebels to set up their own governments and yet claim loyalty to the imprisoned Spanish King.
The "flag" of the movement used for Hidalgo that early morning was a banner of the Virgin of Guadalupe; And the words uttered by Hidalgo at the end of his fatefully speech has a lot of versions, but since 1910 the word of "El grito" it's something like :
Mexicans!!
Long live the heroes that gave us the Fatherland!!
Long live Hidalgo!!
Long live Morelos!!
Long live Josefa Ortiz de Dominguez!!
Long live Allende!!
Long live Aldama y Matamoros!!
Long live National Independece!!
Long live Mexico!!
Long live Mexico!!
Long live Mexico!!