Catalonia - Wikipedia

How Different is Spanish and Catalan? - Strømmen Language Classes

Is Catalan Spanish? Comparing Catalan vs. Castilian Spanish

diferencias regionales - Difference between Spanish and Catalan - Spanish Language Stack Exchange

Verb inflection in (Valencian) Catalan with and without syncretism

Spain vs Catalonia, Catalonia vs Spain, Spain, Catalonia, Comparison

Showdown in Spain

What cultural differences exist between Spanish people and Catalan people? - Quora

Catalan and Neapolitan

Catalan Academics Press Separatist Drive - WSJ

Did you know that there are two languages (Catalan via Spanish; Cantonese via Mandarin) that can't be learned through the English version of Duolingo? : r/duolingo