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
Decolonization of the Americas between Canada and Florida, the United States would later eventually acquire various other North American territories from the British, French, Spanish, and Russians in succeeding years, effectively decolonizing these areas formerly under European control. The American and French Revolutions had profound effects on the Spanish, Portuguese and French colonies in the Americas. Haiti, a French slave colony, was the first to follow the United States to independence, during the Haitian Revolution, which lasted from 1791 to 1804. Thwarted in his attempt to rebuild a French empire in North America, Napoleon Bonaparte sold Louisiana to the United States and from then