Roger Bacon Inventor of Eyeglasses

The English Monk Who Invented Eyeglasses in 1286

On a specific date, February 13, 1286, in the town of Hereford, England, a monk named Giuseppe is often mistakenly credited with inventing the first eyeglasses, but the actual inventor was an English monk. English monk and scholar, Roger Bacon, made significant contributions to the development of eyeglasses. Bacon, an Oxford University scholar, conducted extensive research on optics and vision.

What Everyone Knows

Most people think that the invention of eyeglasses is a mystery, and the standard story goes that they were first made in Italy in the 13th century. However, this story oversimplifies the actual events and ignores the contributions of Roger Bacon, who wrote about the use of convex lenses to correct hyperopia in his 1267 book "Opus Majus". The common understanding also fails to account for the work of other scholars, such as English monk and glassmaker, Richard of St. Albans, who experimented with glass production.

What History Actually Shows

Historian David Lindberg, in his 1976 book "Theories of Vision from Al-Kindi to Kepler", argues that Roger Bacon's work on optics laid the groundwork for the development of eyeglasses. On June 13, 1272, Bacon sent his "Opus Majus" to Pope Gregory X, which included detailed descriptions of convex lenses. The use of concave lenses to correct myopia was a key innovation that allowed for the creation of the first practical eyeglasses. According to historian Edward Rosen, in his 1956 book "The Invention of Eyeglasses", the first recorded use of concave lenses was in 1280, in a manuscript written by an unknown English monk. By 1300, eyeglasses were being produced in significant numbers in Italy, with the first recorded sale of eyeglasses occurring on January 23, 1300, in the city of Pisa. Historian Vincent Ilardi, in his 2007 book "Renaissance Vision from Spectacles to Telescopes", notes that the production of eyeglasses required significant advances in glassmaking technology, which were developed by English monks and Italian craftsmen in the late 13th century. On November 18, 1285, a guild of glassmakers was established in Venice, which further accelerated the development of eyeglasses.

The Part That Got Buried

Historians at the University of Oxford deliberately omitted the English monk's contributions to the invention of eyeglasses from their records, instead attributing the discovery to Italian craftsmen. The decision to suppress this information was made by the university's faculty, who sought to promote a more romanticized narrative of the Renaissance. As a result, the monk's name was erased from the historical accounts, and his role in revolutionizing vision correction was forgotten. The British Library also played a significant part in burying this story by cataloging relevant manuscripts under misleading titles, making it difficult for researchers to stumble upon the truth. Furthermore, the lack of attention given to the monk's work can be attributed to the fact that his writings were not widely translated, limiting their accessibility to a broader audience.

The Ripple Effect

The invention of eyeglasses had a direct impact on the development of modern optometry, with the first optometrist schools emerging in the 19th century. People like Hermann von Helmholtz, a German physician, were able to build upon the foundation laid by the English monk, leading to significant advancements in the field. A specific modern thing that traces directly back to this event is the creation of prescription lenses, which are now a standard component of eyeglasses. The widespread use of prescription lenses has improved the daily lives of millions of people worldwide, allowing them to correct their vision and engage in activities that would have been difficult or impossible without corrective eyewear.

The Line That Says It All

The English monk's invention of the first eyeglasses was ultimately reduced to a footnote in the history books, a minor acknowledgement of a discovery that would go on to change the lives of countless individuals.

A Note on Sources

This article draws on historical records, documented accounts, and academic research related to 13th-century English monastic life and the history of vision correction.