The Day of Commemoration and Remembrance of Don Andrés Guacurari is observed in Argentina every July 2. This day honors Andrés Guacurari, a prominent political and military leader of Guarani origin, and commemorates the Battle of Apóstoles, which took place on the same date in 1817 during the Portuguese conquest of the Banda Oriental. Guacurari, who was born in 1768, became the governor of Misiones Province and was notable for introducing agricultural reforms and working to abolish slavery. The battle involved Guacurari's forces defending the town of Apóstoles against Portuguese-Brazilian troops, ultimately driving them out by nightfall. The anniversary serves as a tribute to Guacurari's contributions and legacy, and it coincides with the observance of National Mate Day on his birth anniversary, November 30, due to his role in popularizing yerba mate in the region.