Software engineering during the Italian Renaissance"Quattrocento" and "Cinquecento" were the peaks of Italian arts and culture, and the hallmark of the period know as "the Renaissance". In that time there was software, even if computer hardware had not been invented yet. Programmers simply had other names and used a different set of skills. They struggled with difficult questions, and won. Their teaching could be useful today and that is the reason of the talk: it will be about (ancient) algebraic equations, (modern) software engineering and hysterical raisins. It will not be a rant, I promise. Really. Trust me.