Authenticity of Leonardo da Vinci's Vitruvian Man questioned

Life's Little Mysteries reports: Leonardo da Vinci's drawing of a male figure perfectly inscribed in a circle and square, known as the "Vitruvian Man," illustrates what he believed to be a divine connection between the human form and the universe. Beloved for its beauty and symbolic power, it is one of the most famous images in the world. However, new research suggests that the work, which dates to 1490, may be a copy of an earlier drawing by Leonardo's friend.

Another illustration of a divinely proportioned man — the subject is Christ-like, but the setting is strikingly similar to Leonardo's — has been discovered in a forgotten manuscript in Ferrara, Italy.

Both drawings are depictions of a passage written 1,500 years earlier by Vitruvius, an ancient Roman architect, in which he describes a man's body fitting perfectly inside a circle (the divine symbol) and inside a square (the earthly symbol). It was a geometric interpretation of the ancient belief that man is a "microcosm": a miniature embodiment of the whole universe. Leonardo and other scholars revived this vainglorious notion during the Italian Renaissance.

After decades of study, Claudio Sgarbi, an Italian architectural historian who discovered the lesser known illustration of the Vitruvian man in 1986, now believes it to be the work of Giacomo Andrea de Ferrara, a Renaissance architect, expert on Vitruvius, and close friend of Leonardo's. What's more, Sgarbi believes Giacomo Andrea probably drew his Vitruvian man first, though the two men are likely to have discussed their mutual efforts.

Sgarbi will lay out his arguments in a volume of academic papers to be published this winter, Smithsonian Magazine reports.

More on the research and it's agruments can be read here and here.