The Sphere of Sacrobosco and its Commentators

The Sphere of Sacrobosco and its Commentators presents Lynn Thorndike's translation and analysis of Johannes de Sacrobosco's 13th-century astronomical text De sphaera. The book includes the original Latin text alongside English translations and examines the numerous commentaries written about Sacrobosco's work over several centuries. Thorndike contextualizes Sacrobosco's treatise within medieval astronomy and education, documenting how it became a standard university text throughout Europe. The volume contains detailed notes on the various manuscript versions and printed editions of De sphaera, tracking its evolution and interpretation across different time periods. The commentary section catalogs and discusses the major scholars who wrote about Sacrobosco's work, including their key arguments and contributions to astronomical understanding. Thorndike provides biographical information about these commentators and analyzes how their interpretations reflected changing scientific knowledge. This scholarly work illuminates the transmission of astronomical knowledge from ancient to modern times, revealing how one foundational text shaped scientific education and debate across centuries. The book demonstrates the complex relationship between medieval and early modern approaches to understanding the cosmos.

This appears to be an academic text with limited public reader reviews available online. The few scholars who have reviewed it note its value as a translation and analysis of Sacrobosco's influential medieval astronomy text and its commentaries. Readers appreciated: - Thorough annotations and historical context - Clear translation of the original Latin text - Inclusion of multiple historical commentaries - Index for navigating complex astronomical terms Criticisms: - Dense academic language limits accessibility - High price point for academic libraries - Some reviewers wanted more analysis of Sacrobosco's sources No ratings currently exist on Goodreads, Amazon, or other major review sites. The book is primarily referenced in academic papers and scholarly works rather than consumer review platforms. The only public review found is from the academic journal Isis (1950), where the reviewer notes the book's importance for medieval science history but suggests it could have provided more background on Arabic astronomical influences.

The Almagest by Ptolemy This foundational text of medieval astronomy presents mathematical models and observations that influenced scholars who studied Sacrobosco's work.

De revolutionibus orbium coelestium by Nicolaus Copernicus The work represents the transition between medieval and Renaissance astronomy, building upon and challenging concepts found in Sacrobosco's sphere.

Science in the Middle Ages by David C. Lindberg This compilation examines the development of medieval scientific thought, including the university context in which Sacrobosco's text was taught.

The Beginnings of Western Science by David C. Lindberg The text traces the evolution of scientific thinking from ancient Greece through medieval universities, incorporating the astronomical traditions that shaped Sacrobosco's writings.

Medieval Science, Technology, and Medicine: An Encyclopedia by Thomas Glick, Steven J. Livesey, and Faith Wallis This reference work provides context for Sacrobosco's sphere within the broader framework of medieval scientific knowledge and education.

🌟 The book contains the first known printed spaceships in history - crude woodcut illustrations from 1498 showing sailing vessels floating among the stars, decades before the concept of space travel was seriously considered. 🌟 Sacrobosco's original text from the 13th century remained a standard astronomy textbook at European universities for over 400 years, making it one of the longest-used scientific textbooks in history. 🌟 Lynn Thorndike translated and compiled commentaries spanning 300 years of astronomical thought, providing unique insights into how medieval scholars grappled with reconciling ancient Greek cosmology with Christian doctrine. 🌟 The work includes previously unpublished marginalia from actual medieval students, showing their calculations, doodles, and notes - giving a rare glimpse into the medieval classroom experience. 🌟 Despite teaching that the Earth was spherical (not flat), Sacrobosco's text was approved by the Catholic Church and widely used in religious institutions, demonstrating that the "flat Earth in medieval times" narrative is largely a modern myth.