Note 901 — Chapter II · THE ROMAN EMPIRE UNDER ANASTASIUS: THE INHERITANCE OF JUSTINIAN (continued 2)

Such is the well-known system elaborated by Hipparchus and Ptolemy, but the Pythagoreans put the sun at the centre, though without definite reasons and with imaginative details; see Diogenes Laert. and Delambre’s Hist. Astron. Ant. Although Democritus, Epicurus, and others held that there were an infinite number of worlds (κόσμοι), they regarded the objective universe as only one of them, and had no idea that myriads of systems similar to that in which they lived lay before their eyes.