It's been at least eight score since vigesimal usage was common in English.
It's still used for numbers between 70-99 in French, which is maddening when trying to copy down a phone number as a non-native speaker.
Yeah, I think Swiss French had more? (It's been about four decades since I took French, and high school classes are not very effective.)
Yeah, I think Swiss French had more? (It's been about four decades since I took French, and high school classes are not very effective.)