Christopher Tyler discusses three books published by Diatrope Press

Complete Illustrated Edition of the Life of Leonardo da Vinci, from Lives of the Most Excellent Painters, Sculptors, and Architects by Giorgio Vasari.. Edited with complete illustrations and annotations by Christopher W. Tyler. Color illustrations throughout. This is the only edition of Vasari’s Life of da Vinci that illustrates every single painting and sculpture mentioned by Vasari. Translated by Gaston du C. De Vere (The Medici Society/Macmillan: London, 1912-1915).

Portraits of his Daughters by Thomas Gainsborough commemorates two delightful sisters painted by their father, the famous 18th century English painter Thomas Gainsborough (1727-1788). The daughters are buried together at St Mary’s Church, Hanwell. In 1809, the rector of the Church, George Henry Glass, built the Hanwell cottage where a fountain inscribed in memory of two sisters makes an interesting link with the Gainsborough daughters. Illustrations on every page.

Parallel Alices: Alice through the Looking Glass of Eleanor of Aquitaine. New insights into historical roots of Alice in Wonderland. Examines the historical lines of the Alice books by Lewis Carroll through the historical sources at the time of Eleanor of Aquitaine. 170p. 6×9″ inches. Includes timelines, glossary, bibliography.

Lecture: Was Leonardo da Vinci’s World Map the First to Name America?

Was Leonardo da Vinci’s World Map the First to Name America?

by: Christopher W. Tyler, Ph.D., D.Sc.  –  Saturday Sept 28 @ 3:00 PM

Christopher Tyler’s scientific interests are in visual perception and visual neuroscience. With regards to Leonardo da Vinci, Tyler’s interests extend from his youthful activities as an extempore singer and artist’s model in Florence to his architectural and anamorphic influences in the Court of Renaissance France.

image+%281%29.jpgIn addition to his better known artistic, scientific and engineering talents, Leonardo da Vinci has an extensive reputation as a cartographer, drawing maps for a wide range of hydro-engineering projects for the rulers of Florence, Milan, Arezzo and the Vatican, amongst others. However, he is not generally acknowledged as authoring a world map (or mappamundi) spanning the globe, which was the domain of a few specialized cartographers of the era. Nevertheless, there is a world map among his papers in the Royal Library, Windsor, which has the correct overall configuration of the continents, including an ocean at the north pole and a continent at the south pole. Moreover, it has a unique cartographic projection onto eight spherical-geometry triangles that provide close to isometric projection throughout the globe.

This quincentennial anniversary year of his death in 1519 is an appropriate moment for a reappraisal of this contribution to global cartography. Although the authenticity of this world map has been questioned, there is an obscure page of his notebooks in the Codex Atlanticus containing a sketch of this precise form of global projection, tying him securely to its genesis. Moreover, the same notebook page contains sketches of eight other global projections known at that time (early C16th), from the Roman Ptolemaic conic section projection to Rosselli’s (1508) oval planispheric projection. This paper reassesses the dating of Da Vinci’s unique mappamundi to suggest that it predates that of Waldseemüller (1507), and may thus have been the first map in history to name both America and Florida.