Ruggieri and Matteo Ricci created a Portuguese–Chinese dictionary – the first ever European–Chinese dictionary. For instance, as Portuguese merchants were presumably the first to introduce the sweet orange in Europe, in several modern Indo-European languages the fruit has been named after them. Some examples are Albanian portokall, Bosnian (archaic) portokal, prtokal, Bulgarian портокал (portokal), Greek πορτοκάλι (portokáli), Macedonian , Persian پرتقال (porteghal), and Romanian portocală. Related names can be found in other languages, such as Arabic البرتقال (burtuqāl), Georgian ფორთოხალი (p'ort'oxali), Turkish portakal and Amharic birtukan. Also, in southern Italian dialects (e.g. Neapolitan), an orange is portogallo or purtuallo, literally "(the) Portuguese (one)", in contrast to standard Italian arancia. Derived languages Beginning in the 16th century, the extensive contacts between Portuguese travelers and settlers, African and Asian slaves, and local populations led to the appearance of many pidgins with varying amounts of Portuguese influence. As each of these pidgins became the mother tongue of succeeding generations, they evolved into fully fledged creole languages, which remained in use in many parts of Asia, Africa and South America until the 18th century. Some Portuguese-based or Portuguese-influenced creoles are still spoken today, by over 3 million people worldwide, especially people of partial Portuguese ancestry. Phonology Portuguese phonology is similar to those of languages such as Catalan and Franco-Provençal, whereas that of Spanish is similar to those of Sardinian and the Southern Italian dialects. Some would describe the phonology of Portuguese as a blend of Spanish, Gallo-Romance (e.g. French) and the languages of northern Italy (especially Genoese). There is a maximum of 9 oral vowels, 2 semivowels and 21 consonants; though some varieties of the language have fewer phonemes. There are also five nasal vowels, which some linguists regard as allophones of the oral vowels. Galician-Portuguese developed in the region of the former Roman province of Gallaecia, from the Vulgar Latin (common Latin) that had been introduced by Roman soldiers, colonists and magistrates during the time of the Roman Empire. Although the process may have been slower than in other regions, the centuries of contact with Vulgar Latin, after a period of bilingualism, completely extinguished the native languages, leading to the evolution of a new variety of Latin with a few Gallaecian features. Gallaecian and Lusitanian influences were absorbed into the local Vulgar Latin dialect, which can be detected in some Galician-Portuguese words as well as in placenames of Celtic and Iberian origin. An