where did this language which influenced english originate?
Current anthropological thinking places their origin in eastern Polynesia, mostly likely from the Southern Cook region
Māori language
According to legend, Māori came to New Zealand from Hawaiki. Current anthropological thinking places their origin in eastern Polynesia, mostly likely from the Southern Cook or Society Islands region, and says that they arrived by deliberate voyages in seagoing canoes—possibly double-hulled, and probably sail-rigged. 
who said english is our major window on the modern world UNANSWERABLE how is this language classified? It is an Indo-European language and belongs to the West Germanic group of the Germanic languages. which are some of the dialects? British English (BrE) and North American English (NAE) and Australian and New Zealand English what are the notable features of the first dialect? It revolve around the pronunciation of the letter R, as well as the dental plosive T and some diphthongs specific to this dialect. does the last dialect has any non english influence? Yes, influence of Māori in what way is this influence seen? It is mostly lexical; many local everyday words have been borrowed from it
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Māori language [SEP] History
According to legend, Māori came to New Zealand from Hawaiki. Current anthropological thinking places their origin in eastern Polynesia, mostly likely from the Southern Cook or Society Islands region, and says that they arrived by deliberate voyages in seagoing canoes—possibly double-hulled, and probably sail-rigged. These settlers probably arrived by about AD 1280 (see Māori origins). Their language and its dialects developed in isolation until the 19th century. Since about 1800, the Māori language has had a tumultuous history. It started this period as the predominant language of New Zealand. In the 1860s, it became a minority language in the shadow of the English spoken by many settlers, missionaries, gold-seekers, and traders.