Wallagga(Mecha)

language	script	region	variant
gaz	Ethi Latn	ET

Family	Afro-Asiatic, Cushitic, East, Oromo
Population	8920000
Alias	Afan Oromo, "Galla", Oromiffa, Oromoo
Dialects	Western Oromo, Central Oromo. Subdialects are Mecha (Maccha, Wellaga, Wallaga, Wollega), Raya, Wello (Wollo), Tulema (Tulama, Shoa, Shewa). Harar and Boran are most divergent.
Writing system	Ethiopic script (subtag: `Ethi`). used until 1990s. Latin script (subtag: `Latn`), used since 1990s.
Ethnologue	https://www.ethnologue.com/language/gaz/

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Overview