What was the name of the document Iturbide proclaimed on February 24, 1821?

The Plan de Iguala, proclaimed by Agustín de Iturbide on February 24, 1821, set out the program for Mexican independence around three guarantees: religion, independence and unity. It gave rise to the Ejército Trigarante (Army of the Three Guarantees) and, by tradition, inspired the three colors of the Mexican flag.

Don’t confuse it with the Treaties of Córdoba, which Iturbide signed with the Spanish official Juan O’Donojú months later, on August 24, 1821, recognizing that independence.