so the fun thing about the history of the english language is -

writing got standardised just around the same time the printing press was invented, since everyone now had access to the same resources more people learnt to read and write in a similar way. and all was well :)

…

and then something that linguists call “the great vowel shift” happened. where vowels of the oral english language just kinda, did a flip. but because of the printing press thing, you couldn’t just update the ortography… and now because of that (and many other things too, but this is a significant one) english is the way it is :)