I'm thinking about accountants this morning — a propos of the Beattygate ploy of blaming the accountant — and wandered into this NPR piece:
Luca Pacioli was a monk, magician and lover of numbers. He discovered this special bookkeeping in Venice and was intrigued by it. In 1494, he wrote a huge math encyclopedia and included an instructional section on double-entry bookkeeping.I know. Hollywood already made a movie called "The Accountant." It was not, however, about this monk.
Thanks to the newly invented printing press, his book was mass produced and became a big hit. One of the first readers was Leonardo da Vinci, who at the time was painting The Last Supper. Pacioli's encyclopedia had a section on the mathematics of perspective painting which fascinated da Vinci.
"They were hanging out together.... I think they were probably lovers. They certainly spent a lot of time together, and definitely Luca Pacioli was there in the church when Leonardo da Vinci was there in the actual church when Leonardo da Vinci was painting The Last Supper," said [Jane Gleeson-White, author of "Double Entry: How the Merchants of Venice Created Modern Finance"].