The natural step from the Baptistery would be to the Uffizi. But for us not yet; because in order to understand Florence, and particularly the Florence that existed between the extreme dates that I have chosen as containing the fascinating period--namely 1296, when the Duomo was begun, and 1564, when Michelangelo died--one must understand who and what the Medici were. While I have been enjoying the pleasant task of writing this book--which has been more agreeable than any literary work I have ever done--I have continually been conscious of a plaintive voice at my shoulder, proceeding from one of the vigilant and embarrassing imps who sit there and do duty as conscience, inquiring if the time is not about ripe for introducing that historical sketch of Florence without which no account such as this can be rightly understood. And ever I have replied with words of a soothing and procrastinating nature. But now that we are face to face with the Medici family, in their very house, I am conscious that the occasion for that historical sketch is here indeed, and equally I am conscious of being quite incapable of supplying it. For the history of Florence between, say the birth of Giotto or Dante and the return of Cosimo de' Medici from exile, when the absolute Medici rule began, is so turbulent, crowded, and complex that it would require the whole of this volume to describe it. The changes in the government of the city would alone occupy a good third, so constant and complicated were they. I should have to explain the Guelphs and the Ghibellines, the Neri and the Bianchi, the Guilds and the Priors, the gonfalonieri and the podesta, the secondo popolo and the buonuomini. Rather than do this imperfectly I have chosen to do it not at all; and the curious must resort to historians proper. But there is at the end of the volume a table of the chief dates in Florentine and European history in the period chosen, together with births and deaths of artists and poets and other important persons, so that a bird's-eye view of the progress of affairs can be quickly gained, while in this chapter I offer an outline of the great family of rulers of Florence who made the little city an aesthetic lawgiver to the world and with whom her later fame, good or ill, is indissolubly united. For the rest, is there not the library?