The Decameron, subtitled Prince Galehaut, is a collection of novellas by the 14th-century Italian author Giovanni Boccaccio. The book is structured as a frame story containing 100 tales told by a group of seven young women and three young men sheltering in a secluded villa just outside Florence to escape the Black Death, which was afflicting the city. Boccaccio probably conceived of The Decameron after the epidemic of 1348, and completed it by 1353. The various tales of love in The Decameron range from the erotic to the tragic. Tales of wit, practical jokes, and life lessons contribute to the mosaic. In addition to its literary value and widespread influence (for example on Chaucer's The Canterbury Tales), it provides a document of life at the time. Written in the vernacular of the Florentine language, it is considered a masterpiece of classical early Italian prose. The book's primary title exemplifies Boccaccio's fondness for Greek philology: Decameron combines two Greek words, for "ten" and for "day", to form a term that means "ten-day (event)". Ten days is the period in which the characters of the frame story tell their tales. In Italy during the time of the Black Death, a group of seven young women and three young men flee from plague-ridden Florence to a deserted villa in the countryside of Fiesole for two weeks. To pass the evenings, every member of the party tells a story each night, except for one day per week for chores, and the holy days during which they do no work at all, resulting in ten nights of storytelling over the course of two weeks. Thus, by the end of the fortnight they have told 100 stories.