MetaFilter"Olive Oil, Butter, And What Else?"
"Recently saw a map where they had divided Europe into butter Europe and olive oil Europe. If this had been a map of the world, what other oils would be on there?" Interesting question from iamsuper in Ask Metafilter, with lots of great answers, and fascinating background from Jane the Brown
https://ask.metafilter.com/374906/Olive-Oil-Butter-and-What-Else
