The first elementary school in Pérez Zeledón was established during Ascensión Esquivel Ibarra's government (1902-1906). It was called Escuela Mixta de Ureña and was located in the Ureña district, south of San Isidro de El General's central park. After the Costa Rican Civil War the school was moved to a new building located 100 meters past San Isidro de El General's main entrance. It currently serves under the name "Escuela 12 de Marzo", in honour of the start of the Costa Rican Civil War (which had just ended when the school was re-inaugurated at its current location).