It's not but the Great Vowel Shift happened after spellings were standardized and was a pretty big change. For me the worst part is that my last name, Clough,

It's not but the Great Vowel Shift happened after spellings were standardized and was a pretty big change. For me the worst part is that my last name, Clough, was originally spelled that way to indicate it used English's guttural sound before that sound got dropped from the language and all the words with that sound got their own new pronunciations. E.g., "Though through rough boughs I push my way."