 Poggio Bracciolini's record of de' Conti's account, made in 1444, constitutes one of the best accounts of the East by a 15th-century traveler.It was included in the Book IV of his "De varietate fortunae" ("On the Vicissitudes of Fortune").Accounts of Niccolò de' Conti's travels, which first circulated in manuscript form, are said to have profoundly influenced the European geographical understanding of the areas around the Indian Ocean during the middle of the 15th century.