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
The Early Middle Ages (or early medieval period), sometimes controversially referred to as the Dark Ages, is typically regarded by historians as lasting from the late 5th or early 6th century to the 10th century. They marked the start of the Mi ...
. Using more exact mathematical and astronomical methods Garlandus changed the estimates for the
Date of birth of Jesus
The date of birth of Jesus is not stated in the gospels or in any historical sources but most biblical scholars assume a year of birth between 6 and 4 BC. The historical evidence is too incomplete to allow a definitive dating, but the year is ...
.
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
Scholastic philosophers
People of the Prince-Bishopric of Liège
11th-century mathematicians
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