Galician-Portuguese linguistic unity until the 16th century seems to be consensus, as does both Galician and European Portuguese being closer to each other and to the more conservative Portuguese variants of Brazil and Africa in the 18th century than in the 19th century, and also closer in the 19th century than in the 20th century and now. In this period, while Galician for the most part lost vowel reduction, velarization of and nasal vowels, and some speech registers of it adhered to "yeísmo", all making it phonologically closer to Spanish. For example, European Portuguese had splits that created two new vowel phonemes, one of them usually an allophone only in the case of vowel reduction and the other phonetically absent in any other variant. Some dialects had a merger of three of its oral diphthongs and another three of its nasal vowels, and together with Brazilian Portuguese absorbed more than 5000 loanwords from French as well as 1500 from English.