Suggestion: Advance tree
I have been using Duolingo and I would like to say thanks to the team. I would like to recommend Duolingo to create an advanced tree for specific fields such as Science, Arts or History. Maybe users in the future could create branches that delve deeper into these fields after learning the basics of course. I hope Duolingo would look into this. Sorry for the long posts.
That's only true if the Duolingo staff is doing all the work. In reading other posts about what's coming soon, it sounds like the community will be able to submit new vocabulary. Specialized areas of vocabulary would be perfect for this community contribution, and I'd love to expand my vocabulary beyond 1800 words.
It would be useful for us when we translate articles for Duolingo since some articles are scientific while others are geared towards Art and Literature or History. So I think that introducing this would be good since we are equipped with more vocabulary in that area which would help our reading.