This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

Since the Spanish transition to democracy (1975–1982), Catalan has been recognized as an official language, language of education, and language of mass media, all of which have contributed to its increased prestige. There is no parallel in Europe of such a large, bilingual, non-state speech community.
What happened in 1975-1982?