Caption: A woodcut depicting "Pythagoras (c.570--c.495 BCE) and and the Pythagorean Philolaus (c.470--c.385 BCE) experimenting with musical pipes. From Theorica musicae (1492 or 1480?) by Franchinus Gaffurius (1451--1522)." (Slightly edited.)
Philolaus is the inventor or at least the proponent of the first known Solar System model, the Philolaic system as we call it.
Credit/Permission:
Franchinus Gaffurius (1451--1522),
1492
(or 1480),
(uploaded to Wikipedia
by User:Singinglemon,
2010) /
Public domain.
Image link: Wikipedia:
File:Pythagoras and Philolaus.png.
Local file: local link: philolaus_pythagoras.html.
File: Ancient Astronomy file:
philolaus_pythagoras.html.