May 3, 1469: On this day in 1469, the Italian philosopher and writer Niccolo Machiavelli is born. A lifelong patriot and diehard proponent of a unified Italy, Machiavelli became one of the fathers of modern political theory. Machiavelli entered the political service of his native Florence by the time he was 29. As defense secretary, he distinguished himself by executing policies that strengthened Florence politically. He soon found himself assigned diplomatic missions for his principality, through which he met such luminaries as Louis XII of France, Pope Julius II, the Holy Roman Emperor Maximilian I, and perhaps most importantly for Machiavelli, a prince of the Papal States named Cesare Borgia.…