The Italian Leonado da Vinci (1452-1519) produced many drawings, paintings (including the Mona Lisa) and statues. He seems to have found time to do almost everything else. He was a mathematician, an architect and an engineer. He made many discoveries about light, heat and friction. He produced theories about the movement of the earth and started the classification of animals into vertebrates and invertebrates. He also invented many things, not all of which worked. His inventions were far ahead of his time: one of them, for instance, was for a flying machine very much like our modern helicopter and another was for an armored fighting machine like the tank.
According to the story, what else could Leonado da Vinci be?
a mason
a historian
a photographer
a biologist
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