Venice (along with Florence) was a publishing giant throughout the Renaissance. Thus, it is the site to which Pacioli traveled to publish both of his works: Summa de arithmetica, geometria, proportioni et proportionalita (in 1494) and De Divina Proportione (1509). De Divina Proportione included sixty illustrations by da Vinci, and these sixty sketches would constitute the only work of da Vinci that would be published during his lifetime. An interesting fact about both texts is that they were published in Italian (the vernacular) rather than Latin.

Pacioli and da Vinci met each other and fostered a close connection through mathematical collaboration in this city. da Vinci was in the Court of Milan in 1494 when Pacioli’s Summa de arithmetica, geometria, proportioni et proportionalita was published. Since da Vinci bought a copy of this text as soon as it was published, it is reasonable to assume that da Vinci pushed for the invitation of Pacioli to the Court of Milan. During his stay in Milan, Pacioli shared living quarters with da Vinci at the Corte Vecchia.

This is where Charles Perry’s Eclipse was installed in 1973. Eclipse is the most widely known of Perry’s works, which are known for the way in which they capture abstract geometric shapes in states of transformation and movement. Perry likes to understand his sculptures as capturing the most fundamental movements in science, such as the vibrations of atoms in a molecule.

Perry, Charles O. “On the Edge of Science: The Role of the Artists Intuition in Science.” Leonardo, vol. 25, no. 3/4, 1992, pp. 249–252., doi:10.2307/1575845.

This is the university at which George Hart was a professor (he just recently retired). Here he did interdisciplinary research inspired by da Vinci’s work with polyhedra. Hart also collaborated with Craig Kaplan and Douglas Zongker, both from the University of Washington in Seattle. Along with creating hybrid polyhedra for research, Hart also created sculptures of polyhedra, one of such sculptures was on display in the computer science building at University of California, Berkeley.

After the French attempted to gain control of Milan in 1498, da Vinci and Pacioli fled the city together in December of 1499.  After making stops in Mantua and then Venice, the two settled in Florence, where they shared a house. While in Florence, Pacioli involved himself with both math and Church endeavors; he also taught geometry at the University of Pisa in Florence. In 1506, Pacioli entered the monastery at Santa Croche. da Vinci remained in Florence until 1506, although during those six years he left for ten months to work for Cesare Borgia.

North Wales is a region in Wales. The largest town is Wrexham. It is traditionally divided into the three regions of Upper Gwynedd, Lower Gwynedd, and Ynys Môn.

Northamptonshire is a county in the East Midlands region of England and is approximately 900 sq. miles.

Queens’ College is a constituent college of the University of Cambridge. Founded in 1448, it is one of the oldest and largest of the colleges.