The Memory Cathedral
Jack Dann
 Dann's major historical novel depicts a version of the Renaissance in which Leonardo da Vinci actually constructs a number of his inventions, such as a flying machine, whose designs are well-known from his surviving sketches. He later employs some of his military inventions during a battle in the Middle East, while in the service of a Syrian general - events which Dann projects into a year of da Vinci's life about which little is known. The novel also presents a detailed imagining of the life and character of the inventor and painter during this period, and includes his encounters with other historical characters residing in Florence including Machiavelli and Botticelli. The title refers to an ancient system of memory recall, or Mnemonics, in which a building, such as a cathedral, is constructed in the mind as a container for imagined objects - which are deliberately connected to particular memories. The building can later be mentally navigated to re-encounter those objects and retrieve the memories with which they are associated. Da Vinci's memory cathedral functions in the narrative as a device through which he reviews his experiences as death approaches.