academic institution vs gymnasium

academic institution

noun
  • An educational institution, dedicated to teaching and/or research. 

  • An educational institution, dedicated to higher education and research, that grants academic degrees. 

gymnasium

noun
  • A type of secondary school in some European countries which typically prepares students for university. 

  • A large room or building for indoor sports. 

  • A public place or building where Ancient Greek youths took exercise, with running and wrestling grounds, baths, and halls for conversation. 

How often have the words academic institution and gymnasium occurred in a corpus of books? (source: Google Ngram Viewer )