The architect Marcus Vitrivius Pollio was probably born in Verona around 80 BC. He did an apprenticeship as an engineer and architect. Vitrivius Pollio particulary dealt with machines used in wars. Not until he was old did he deal with architecture and built among other things the Basilica of Fanum and constructed aequaducts. His name was mainly connected with his opus "de architectura libri decem" (ten books of architecture) which was a book of construction in ten volumes. The theory of the well-formed human was an important part of his essay. The most famous illustration of this theory derived from Leonardo da Vinci and became famous as "the Vitruvian Man". Vitrivius Polli died about 20 BC.