Universal knowledge was sourced from Hellas (Greece): Universities (the root of both of these words in blue letters is Universe, synonyms include: Creation, Cosmos, infinity), originated from there, too (learn more here).
The Hellenic word for University is Πανεπιστήμιο: παν (all) & επιστήμη (science). All sciences came from there, too (learn more here).
All areas of knowledge were taught there and they were all interconnected. There was no separation of subjects like the sciences, mathematics and literature (the arts), as we now have (and have had for centuries), at universities.
The Hellenes discovered, or invented the following: philosophy, theatre, the arts, universities, democracy, architecture, plumbing, irrigation systems, Masonry**, the alphabet, math, geometry, Gematria, the Holy Scripture, the Olympics (competitive sports), astronomy, physics, chemistry, law, genetics, medicine, and, psychology (the study of the soul that is an inherent part of Western astrology which also originated in Hellas). Psychology was an essential element of their religious practices. The symbolic death-rebirth/resurrection related to life, or the soul, is Hellenic in origin, whether it be connected to Dionysos, Jesus Christ, or the Phoenix rising from the ashes. The Hellenes had a profound understanding of human nature/psychology.
**“Masonry” is a Hellenic word but the origin of it is in dispute: some think it is connected to the word for “mystery” (Mυστήριοv); others believe it is derived from the word for “midheaven” (Mέσος: midst; Oυρανός: heaven.) (The Greek Origin Of Freemasonry, 1956, 2nd edition, p. 136).
These excerpts in italics are from the article, God Is Light.
Helen