Comment Re:sampling bias (Score 1) 405
Note that an 80% literacy rate is not good at all, since literacy is defined generously and has been over 99% for our lifetimes. I'm sure a 5th grade reading level would be considered literate. Rather than a class full of high school students reading at the 5th grade level, though, it's more likely that a lot of the would-be students weren't in class at all. High school attendance rates in the first half of the 20th century were a lot lower.