Duolingo Data: Units/Learners/Lessons/Stories/Words per Course (path)
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2025 03 24
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Gray = A/B test, Beta, or old & not fully available Learning links to Course structure (CEFR Level in red) 'from' links to a JSON tech file U = Units (Links to path image) Lr = Learners (Million. Green=Link to DuoRadios) Ls = Lessons (Purple = Adventures, links to them) S = Stories (links to them, or to Unofficial Stories) W = Words* R = Release Date (Year.Month), links to course versions D = Different Lessons (Ranking), links to them