Leonardo da Vinci’s iconic Vitruvian Man is famous for its unique representation of the symmetry of the human body.

The 1487 drawing of a man inside a circle and square, which explores the geometry of man and the universe, is based on the teachings of ancient Roman architect Vitruvius.

But it has now emerged that Da Vinci may have copied it from a friend.

A strikingly similar illustration of the divine proportions of man was found in a lost manuscript in Ferrara, Italy in 1986.

The Italian architectural historian who discovered the lesser known image now believes it to be the work of Giacomo Andrea da Ferrara, a Vitruvius expert and architect who was Da Vinci’s close associate.

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