World’s earliest ‘photo’ bomb
The intrigue of arguably the worlds earliest photo bomb, is also possibly the most boring of subjects. Fra Luca Bartolomeo de Pacioli (sometimes Paccioli or Paciolo; 1445–1517) is referred to as the Father of Accounting and Bookkeeping (he was the first to publish a work on double-entry system of book-keeping).[W] He was also called Luca di Borgo after his birthplace. This painting of him, has been attributed to Da Vinci, Leonardo was known to be fond of visual puzzles.