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Roger Bacon
Roger Bacon
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Themed Timelines

Bacon's Influence on Later Scientists and Thinkers (Posthumous)Bacon's Influence on Later Scientists and Thinkers (Posthumous)Later Life, Condemnation, and Death (c. 1268-1294)Later Life, Condemnation, and Death (c. 1268-1294)Roger Bacon's Linguistic Studies (Throughout his life)Roger Bacon's Linguistic Studies (Throughout his life)Main milestonesMain milestonesBacon's Contributions to Optics and Vision (1260s)Bacon's Contributions to Optics and Vision (1260s)Joining the Franciscan Order and the 'Opus Majus' (c. 1257-1268)Joining the Franciscan Order and the 'Opus Majus' (c. 1257-1268)Bacon's Interest in Alchemy and Astrology (Throughout his life)Bacon's Interest in Alchemy and Astrology (Throughout his life)Early Life and Education Timeline (c. 1214-1240s)Early Life and Education Timeline (c. 1214-1240s)The Paris Years: Intellectual Development (c. 1240s-1250s)The Paris Years: Intellectual Development (c. 1240s-1250s)
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Roger Bacon - English polymath, philosopher and friar (c.1219/20–c.1292)

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03.04.25
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Joining the Franciscan Order and the 'Opus Majus' (c. 1257-1268)

This timeline covers Roger Bacon's entry into the Franciscan Order and the subsequent period of intense scholarly activity spurred by the request of Pope Clement IV. This period is marked by the creation of his monumental 'Opus Majus'.
Entrance into the Franciscan Order
c. 1257
Bacon joins the Franciscan Order, which significantly alters the course of his life. The constraints of monastic life initially hinder his scholarly pursuits.
Papal Intervention: Request from Pope Clement IV
1266
Pope Clement IV, having heard of Bacon's reputation, sends a letter requesting him to write a comprehensive treatise on science and philosophy, despite Bacon's monastic restrictions.
Creation of the 'Opus Majus'
1267-1268
Bacon dedicates himself to fulfilling the Pope's request. In a remarkably short period, he writes the 'Opus Majus' ('Greater Work'), a vast and encyclopedic work covering grammar, logic, mathematics, physics, optics, moral philosophy, and experimental science. This work includes a world map.
The 'Opus Minus' and 'Opus Tertium'
1268
As supplements to the 'Opus Majus,' Bacon prepares the 'Opus Minus' ('Lesser Work') and the 'Opus Tertium' ('Third Work'), further elaborating on his ideas and addressing specific points raised by the Pope.

Other Themed Timelines

Main milestonesMain milestonesBacon's Contributions to Optics and Vision (1260s)Bacon's Contributions to Optics and Vision (1260s)Bacon's Influence on Later Scientists and Thinkers (Posthumous)Bacon's Influence on Later Scientists and Thinkers (Posthumous)Bacon's Interest in Alchemy and Astrology (Throughout his life)Bacon's Interest in Alchemy and Astrology (Throughout his life)Early Life and Education Timeline (c. 1214-1240s)Early Life and Education Timeline (c. 1214-1240s)Later Life, Condemnation, and Death (c. 1268-1294)Later Life, Condemnation, and Death (c. 1268-1294)Roger Bacon's Linguistic Studies (Throughout his life)Roger Bacon's Linguistic Studies (Throughout his life)The Paris Years: Intellectual Development (c. 1240s-1250s)The Paris Years: Intellectual Development (c. 1240s-1250s)