August 24, 1821 - Treaty of Córdoba

On August 24, 1821, Agustín de Iturbide and Juan O’Donojú, the last political chief sent by Spain, signed the Treaty of Córdoba in Veracruz. The treaty recognized Mexico’s independence as an empire and confirmed what the Plan of Iguala proposed.

A month later, on September 27, 1821, the Army of the Three Guarantees entered Mexico City and independence was consummated. Spain rejected the treaty and did not recognize Mexico until 1836.