Timeline projection uses speaker counts and decay modeling, available for 155 of 5,319 languages.
Data scope
Showing all endangered languages from Glottolog v5.3, including 5,164 with regional-prior knowledge assignments.
Overview
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Critically Endangered
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High-Value at Risk
~9
Global rate (UNESCO)
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Visible on Map
Domains at Highest Risk
Filters
Endangerment Level
Continent
Knowledge Domain
Observability Score
0
Filter applies only to the 155 direct-evidence languages. Languages with regional-prior knowledge assignments are not affected.
Max Speaker Count
All
Speaker counts available for 155 of 5,319 languages (those with direct ethnographic sourcing). Slider applies only to those.
Domain Breakdown (Critical)
Data sources: Glottolog v5.3 (Hammarström H, Forkel R, Haspelmath M, Bank S. 2024. CC-BY-4.0, DOI 10.5281/zenodo.596479); UNESCO Atlas of the World's Languages in Danger; Camara-Leret & Bascompte (2021) PNAS. Observability scoring: Allan (2026).
Glottolog v5.3 (Hammarström et al. 2024), filtered to AES levels vulnerable through critically endangered. 5,319 languages displayed (155 with direct ethnographic sourcing, 5,164 with regional-prior knowledge-domain assignments, flagged estimated: true). Knowledge-domain regional priors documented in build_dashboard_data.py.