The way Americans speak pre-dates the way English speak. This is because “rhotic speech” spoken in America originally came from England, later the wealthy in order to be different adopted a soft “r”, “win-tuh” instead of “win-terr”. It was “posh” to sound like that so everyone else copied them.
The ‘Worst book ever written’ called ‘English as She Is spoke’ was a Portuguese-English phrasebook written by a man who did not speak English, Instead relying on a Portuguese–French phrasebook and a French–English dictionary.
A 1992 Japanese TV show combined English lessons with gymnastic exercise programs. On the show, three gymnasts would perform synchronized exercises while chanting phrases like, “Hasta la vista, baby,” “Spare me my life!”, “I was robbed by two men!”, and “I have a bad case of diarrhea.”
Before 1762, there was no influential prescribed English grammar rules, but a desire within the middle class to teach their children to speak like the upperclass prompted Bishop Robert Lowth to publish the prescriptive grammar book which has been the foundation of current English grammar.
The “Pirate speak” from movies and books was an actual distinct dialect of English which was spoken until the 19th century in the west country. It became associated with pirates due to the strong seafaring tradition from the area.
Mastering just 3,000 words in English will make you able to understand around 95% of common texts.
Many words used to be spelled phonetically (e.g. debt was ‘det’) until some scholars purposely added silent letters to make them look more like Greek or Latin words, sometimes erroneously.
There are up to 24 dialects of American English.