Miguel de Güemes Day is observed in Argentina on June 17 to commemorate the national hero Martín Miguel de Güemes, who played a vital role in the War of Independence against Spanish royalists. This public holiday celebrates his leadership and innovative "Gaucho War" tactics, which were instrumental in defending his hometown of Salta. Typical customs include large processions featuring Gauchos, symbolizing Güemes' soldiers, and visits to historical sites related to his legacy. The day was established to honor Güemes, who died on June 17, and reflects the Argentine people's deep respect for their national figures. The holiday emphasizes the importance of his contributions to Argentine sovereignty and the struggle for freedom from Spanish colonization.