Squillace where many texts from Antiquity were to be preserved. Isidore of Seville (c. 560–636) collected all scientific knowledge still available in his time into what might be called the first encyclopedia, the Etymologiae. Gregory of Tours (c. 538–594) wrote a lengthy history of the Frankish kings. Gregory came from a Gallo-Roman aristocratic family, and his Latin, which shows many aberrations from the classical forms, testifies to the declining significance of classical education in Gaul. At the same time, good knowledge of Latin and even of Greek was being preserved in monastic culture in Ireland and was brought to England and the European mainland by missionaries in the course of the 6th and 7th centuries, such as Columbanus (543–615), who founded the monastery of Bobbio in Northern Italy. Ireland was also the birthplace of a strange poetic style known as Hisperic Latin. Other important Insular authors include the historian Gildas (c. 500–570) and the poet Aldhelm (c. 640–709). Benedict Biscop (c. 628–690) founded the monastery of Wearmouth-Jarrow and furnished it with books which he had taken home from a journey to Rome and which were later used by Bede (c. 672–735) to write his Ecclesiastical History of the English People. Many medieval Latin works have been published in the series Patrologia Latina, Corpus Scriptorum Ecclesiasticorum Latinorum and Corpus Christianorum. Medieval Latin and everyday life Medieval Latin was separated from Classical Latin around 800 and at this time was no longer considered part of the everyday language. The speaking of Latin became a practice used mostly by the educated high class population. Even then it was not frequently used in casual conversation. An example of these men includes the churchmen who could read Latin, but could not effectively speak it. Latin's use in universities was structured in lectures and debates, however, it was highly recommended that students use it in conversation. This practice was kept up only due to rules. One of Latin's purposes, writing, was still in practice; the main uses being charters for property transactions and to keep track of the pleadings given in court. Even then, those of the church still used Latin more than the rest of the population. At this time, Latin served little purpose to the regular population but was still used regularly in ecclesiastical culture. Important Medieval Latin authors 6th–8th centuries Boëthius (c. 480 – 525) Cassiodorus (c. 485 – c. 585) Gildas (d.