Duolingo RO from EN versions:

Trees:
v0: 2014-02-01  ? (Beta)
v0: 2016-11-13  ? (Beta)
v1: 2017-06-08, 62 Skills (62 Different lessons)

Paths:
1.0: 2022-09-10, 62 Skills (62 Different lessons) (40 Units)
1.1: 2023-09-10, 62 Skills (62 Different lessons) (41 Units)
1.2: 2024-05-01, 62 Skills (62 Different Lessons) (71 units)

tree_ro_en_v2_experiment	

https://liuch.github.io/duolingo_courses_overview/
https://duolingo.fandom.com/wiki/Course_list
https://duolingodata.com/
https://duolingodata.com/oldtable.html
https://ardslot.com/duolingocrowns.html

Edited by Mat!/Ozone, 2024-05-02.