In Spain’s northeast region of Catalonia, Spanish is not the primary language, it’s Catalan. Since 1983, public schools there have been taught entirely in Catalan — an effort to reinstate the language after it was banned for 40 years. But that could all change after a recent ruling from Spain’s highest court demanded at least 25% of classes be taught in Spanish. The World’s Lucía Benavides reports this has reignited a decadeslong debate around language in schools.