The person who sent me this article added, "This is very dubious. Of COURSE earlier people could see blue, the human eye hasn't changed in a very long time, and only a few can't tell blue from green.
As to linguistic difference in color naming, it's been a hot topic among anthropologists for decades."
Hubski, what do you think about the "Can you see shades of green" test half-way down the article?
It's somewhat akin to the 1000-words-for-snow myth. OK, 50 then, or 43, or 120 depending on how you count.
It's still a fascinating article, particularly the part about the colour blue in Homer'sOdyssey and the way ancient Greeks described colours. mk