7 distinct visual themes • 2,094 languages across 18 depth levels • Authoritative Glottolog data
All visualizations use authoritative data from Glottolog, the comprehensive comparative linguistics database. The tree includes 2,094 Indo-European languages across 18 depth levels, with historically accurate ancestor-descendant relationships.
Updated December 2025 — Previous versions used simplified educational data with only 5 depth levels. Modern English now correctly appears at depth 10, descending through Northwest Germanic → West Germanic → North Sea Germanic → Anglo-Frisian → Anglian → Mercian → Macro-English.