Premise: Leonardo di ser Piero da Vinci ( [ leoˈnardo di ˌsɛr ˈpjɛːro da ( v ) ˈvintʃi ] ; 15 April 14522 May 1519 ) , more commonly Leonardo da Vinci or simply Leonardo , was an Italian polymath whose areas of interest included invention , painting , sculpting , architecture , science , music , mathematics , engineering , literature , anatomy , geology , astronomy , botany , writing , history , and cartography . Some of his smaller inventions , however , such as an automated bobbin winder and a machine for testing the tensile strength of wire , entered the world of manufacturing unheralded .
Hypothesis: Leonardo da Vinci was a manufacturer.
Label: NEUTRAL