> 8th century nothing. It was known in ancient times. I was referring specifically to the pattern of how long it took in the Middle Ages for literature folks t

> 8th century nothing. It was known in ancient times. I was referring specifically to the pattern of how long it took in the Middle Ages for literature folks to get ahold of the idea. The fact is those 8th century monks got the idea from classical sources. The subtext of the paper would be "you English teachers can't expect to know about scientific discoveries of the last couple hundred years, can you?"