Question: Which school was opened first, Instituto Loyola or St. Andrew'S Episcopal School (Mississippi)?
Sentence (from "St. Andrew's Episcopal School (Mississippi)"): Founded in 1947, the school occupies two campuses: the South Campus houses the Lower School( pre-kindergarten through grade 4) in Jackson, and the North Campus houses the Middle School( grades 5- 8) and Upper School( grades 9- 12) in Ridgeland.
Relevant evidence: Yes