	The Tree of Hippocrates, under which Hippocrates — the "Father of Medicine" — taught at Kos, is reputed to have been an oriental plane. A 500-year-old tree presently there may be on the same site and may have been planted from a succession of cuttings from the original. The Athenian Academy, outside Athens, featured a sacred grove of planes where the students listened to the masters and where among others the Peripatetics practiced philosophy.