Ismaël Bullialdus, French astronomer and mathematician (born 1605)

Ismaël Bullialdus

French astronomer (1605–1694)

Ismaël Boulliau was a 17th-century French astronomer, mathematician, and Catholic priest, who was also interested in history, theology, classical studies, and philology. He was an active member of the Republic of Letters, an intellectual community that exchanged ideas. An early…