Spanish attempts to reconquer Mexico
Mexican independence was officially achieved on September 27, 1821, under the Treaty of Córdoba. Spain did not recognize the treaties, arguing that the viceroy Juan O'Donojú had no authority to recognize the independence of any overseas province. This situation was dangerous to the newly acquired independent status of the nation, which had not yet been recognized by any of the European powers that could support it, and the threat of Spanish reconquest was a constant worry to the leaders of the nascent regime. On May 13, 1822 decrees were issued by the government to imprison anyone who conspired against Mexico's independence.
Cry of Dolores
The Cry of Dolores has assumed an almost mythical status. Since the late 20th century, the event has come to symbolize Mexican independence and to initiate Independence Day ceremonies the following day (16 September). Independence Day in Mexico is a patriotic holiday, marked by parades, concerts, patriotic programs, drum and bugle and marching band competitions, and special programs on the national and local media outlets.