summer-school-to-open-monday-7elcwz86 Post date June 3, 2022 Tags Americas, Maria Montessori - Biographic sources, North America, Panama-California Exposition (1915, San Diego, California), United States of America ← summer-school-to-be-held-at-exposition-qfnmu9ar → montessori-to-teach-25-san-diego-children-3zug9b6b