The first permanent English-speaking colony was established in North America in the early 1600s. The Americans soon developed a form of English that differed in a number of ways from the language spoken back in The British Isles. In some cases older forms were retained — the way most Americans pronounce the sound after a vowel in words like start, north, nurse and letter is probably very similar to pronunciation in 17th century England. Similarly, the distinction between past tense got and past participle gotten still exists in American English but has been lost in most dialects of the UK.