Fra Luca Bartolomeo de Pacioli (sometimes Paccioli or Paciolo; c. 1447–1517) was an Italian mathematician, Franciscan friar, collaborator with Leonardo da Vinci, and a seminal contributor to the field now known as accounting. Image File:Luca Pacioli (Gemaelde).jpeg is Portrait of Luca Pacioli, traditionally attributed to Jacopo de’ Barbari, 1495, in public domain.
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