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).
Using more exact mathematical and astronomical methods Garlandus changed the estimates for the Date of birth of Jesus.
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