The document discusses the recent vote in Catalonia supporting independence from Spain and examines related documents from the 1970s during Spain's transition to democracy after Franco's dictatorship. It finds that despite the relatively peaceful transition, there were underlying forces of separatism, as evidenced by concerns over Catalan autonomy. The Catalan identity and past concessions to autonomy have nourished calls for independence that remain strong today, as shown by the recent vote, posing challenges for the Spanish government.