Isn’t vegetarian an ancient caveman word for “bad hunter?”
The blue color (or the lack of it) mentioned in the article was interesting. In the Oriental Museum in Chicago, they had some of the “Blue Bricks of Babylon” when I was there 45+ years ago. How exactly the blue color was made is still not certain. I don’t think there were many blue natural dyes, and purple was VERY rare and expensive. Therefore, it was “royal” until the mid-late 1800’s, when organic chemistry made purple dyes relatively inexpensive and common people could have purple dyed clothes (which, naturally, caused a purple clothing craze).
This is interesting:
https://en.wikipedia.org/wiki/Tyrian_purple