the esoteric and metaphysical beliefs held by Pythagoras and his followers
the doctrines of Pythagoras or the Pythagoreans
Pythagoreanism was the system of esoteric and metaphysical beliefs held by Pythagoras and his followers, the Pythagorean cult, who were considerably influenced by mathematics, music and astronomy. Pythagoreanism originated in the 5th century BCE and greatly influenced Platonism. Later revivals of Pythagorean doctrines led to what is now called Neopythagoreanism.
The numerical value of Pythagoreanism in Chaldean Numerology is: 5
The numerical value of Pythagoreanism in Pythagorean Numerology is: 9