The Accademia della Crusca ("Academy of the Bran"), generally abbreviated as La Crusca, is an Italian society for scholars and Italian linguists and philologists established in Florence. It is the most important research institution on Italian language as well as the oldest linguistic academy in the world. The Accademia was founded in Florence in 1583 and it has been characterized by its efforts to maintain the purity of the Italian language. Crusca means "bran" in Italian, which conveys the metaphor that its work is similar to winnowing as it is well explained by the emblem of the Accademia della Crusca that depicts a sifter that is straining out corrupt words and structures (as wheat is separated from bran). The academy motto is "Il più bel fior ne coglie" ('She gathers the fairest flower'), a famous verse of the Italians poet Francesco Petrarca. In 1612, the Accademia published the first edition of its Dictionary: the Vocabolario degli Accademici della Crusca, which also served as the model for similar works in French, Spanish, German and English. The academy is a member of the European Federation of National Linguistic Institutes, a body convened to develop a joint policy to protect the integrity of national languages. The Federation has two Italian members: the Accademia della Crusca and the Opera del Vocabolario Italiano del CNR (an initiative launched by the Centro Nazionale delle Ricerche with the collaboration of the Accademia della Crusca).