Garlandus Compotista, also known as Garland the Computist, was an early medieval logician, astronomer, and mathematician of the eleventh-century school of Liège. Little is known of his life; the Dialectica published under his name by L. M. de Rijk is now commonly attributed to Gerlandus of Besançon (early 12th century).See John Marenbon, Medieval Philosophy. An Historical and Philosophical Introduction, NY: Routledge, 2007, p. 133. Gerlandus was most known for his Computus Gerlandi a computus that was more complex and accurate than those used in the Early Middle Ages. Using more exact mathematical and astronomical methods Garlandus changed the estimates for the Date of birth of Jesus.
Works Computus Gerlandi Dialectica, edited by L. M. De Rijk, Assen: Van Gorcum, 1959.
Notes
References Desmond Paul Henry, That Most Subtle Question (Quaestio Subtilissima): The Metaphysical Bearing of Medieval and Contemporary Linguistic Disciplines, Manchester: Manchester University Press, 1984 William Kneale and Martha Kneale, The Development of Logic, Oxford: Clarendon Press, 1962, pp. 199–200 Alfred Lohr Der Computus Gerlandi: Edition Übersetzung und Erläuterungen.(Sudhoffs Archiv 61.) Stuttgart: Franz Steiner, 2013. Paper. Pp. 493