Nicomachus of Gerasa was an Ancient Greek Neopythagorean philosopher from Gerasa, in the Roman province of Syria. Like many Pythagoreans, Nicomachus wrote about the mystical properties of numbers, best known for his works Introduction to Arithmetic and Manual of Harmonics, which are an important resource on Ancient Greek mathematics and Ancient Greek music in the Roman period. Nicomachus' work on arithmetic became a standard text for Neoplatonic education in Late antiquity, with philosophers such as Iamblichus and John Philoponus writing commentaries on it. A Latin paraphrase by Boethius of Nicomachus's works on arithmetic and music became standard textbooks in medieval education.
Plato (left) and Nicomachus (right), as inventors of music, from a 12th-century manuscript
Jerash is a city in northern Jordan. The city is the administrative center of the Jerash Governorate, and has a population of 50,745 as of 2015. It is located 48 kilometres (30 mi) north of the capital city Amman.
The Greco-Roman city of Gerasa and the modern Jerash in the background.
The Oval Forum and Cardo Maximus in ancient Jerash
Ancient Jerash against the backdrop of the modern city
Colonnaded Street
