Duolingo FI from EN versions:

Trees:
v0: 2019-04-17  ? (Beta)
v0: 2020-06-23  ? (Beta)
v1: 2021-01-31, 35 Skills (35 Different lessons)

Paths:
1.0: 2022-09-10, 35 Skills (35 Different lessons) (23 Units)
1.1: 2023-09-10, 35 Skills (35 Different lessons) (23 Units)
1.2: 2024-05-01, 35 Skills (35 Different Lessons) (40 units)


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.