This is interesting: https://en.m.wikipedia.org/wiki/Great_Vowel_Shift https://en.m.wikipedia.org/wiki/Great_Vowel_Shift Pronunciation in 1600s sounds like a

This is interesting: https://en.m.wikipedia.org/wiki/Great_Vowel_Shift https://en.m.wikipedia.org/wiki/Great_Vowel_Shift Pronunciation in 1600s sounds like a mismash of northern and Scottish accents. The 1600s "mate" is literally how someone from Lancashire would pronounce it. Boat sounds like a mild Scottish accent.