Brazilian Portuguese signed into law by the President on 21 July 2008 allowing for a 6-year adaptation period, during which both orthographies co-existed. All of the CPLP countries have signed the reform. In Brazil, this reform has been in force since January 2016. Portugal and other Portuguese-speaking countries have since begun using the new orthography. Regional varieties of Brazilian Portuguese, while remaining mutually intelligible, may diverge from each other in matters such as vowel pronunciation and speech intonation. The existence of Portuguese in Brazil is a legacy of the Portuguese colonization of the Americas. The first wave of Portuguese-speaking immigrants settled in
Portuguese colonization of the Americas possible voyage of 1473 and several other possible pre-Columbian expeditions to North America in the 15th century, mostly from the Azores in the case of the Portuguese (included in donation royal letters), remain matters of great controversy for scholars. Their existence is based on brief or fragmentary historical documents that are unclear concerning the destinations of voyages. In 1506, King Manuel I of Portugal created taxes for the cod fisheries in Newfoundland waters. João Álvares Fagundes and Pêro de Barcelos established fishing outposts in Newfoundland and Nova Scotia around 1521. These were later abandoned, however, when Portuguese colonizers began to