In 1891, Mother Elena Arellano Chamorro founded el Colegio La Immaculada (The Immaculate School).
In the same year, Francisco Javier Cabrini arrived in Nicaragua with eight nuns dedicated to teaching women in Mother Elena's newly created school.
On August 20, 1894, General Jose Santos Zelaya expelled the religious group Salesas Misioneras del Sagrado Corazón de Jesús from Nicaragua and Mother Elena left the country with them.
In 1903, Mother Elena prepared for the arrival of las Oblatas Del Sagrado Corazón, these women were in charge of el Colegio Nuestra Señora de Guadalupe (French school).
In March 1912, el Colegio San Juan Bosco began operations under the management of los Salesianos.