English pronunciation of Greek letters is indeed quite different from modern Greek pronunciation, but it's not necessarily because English is "wrong" but becaus

English pronunciation of Greek letters is indeed quite different from modern Greek pronunciation, but it's not necessarily because English is "wrong" but because of historical attempts to pronounce the letters like the Ancient Greeks did. For instance, in English we pronounce the letter μ as "mew" ([Mju]). In modern Greek, μ is pronounced "Me" or [Mi] (spelled as μι). Here is a YouTube video of a Greek person going through the alphabet, linked to μ. [1] However, it's thought that "mew" is probably closer to the Ancient Greek pronunciation (Wikipedia shows the Ancient Greek phonetics as [mŷː] where ŷː is like "few" [2]). More to the point, though, the English pronunciation of Greek letters was fixed around the 16th century (see [3] for a tiny bit of history) and was an attempt to use the classical Greek pronunciations, though probably not a very successful one. Likewise π is pronounced differently in modern Greek, where it pronounced like "pee," not "pie," and so would make π-day a very different holiday... 1. https://youtu.be/P85PXR6deIw?t=214 https://youtu.be/P85PXR6deIw?t=214 2. https://en.wikipedia.org/wiki/Mu_(letter) https://en.wikipedia.org/wiki/Mu_(letter) 3. https://en.wikipedia.org/wiki/Pronunciation_of_Ancient_Greek_in_teaching#England https://en.wikipedia.org/wiki/Pronunciation_of_Ancient_Greek...