11 September - Some 1.5 million people take part in Catalonia's annual independence rally in Barcelona.
20 September - The Spanish prime minister rejects a call from Catalonia's leader for fiscal independence, days after a giant pro-autonomy rally in Barcelona.
25 September - Artur Mas announces that Catalonia will hold early elections on November 25
26 November - Voters of Catalonia return a clear majority of pro-separatist parties to the regional parliament
19 December - Artur Mas of the conservative Convergence and Union party and Oriol Junqueras of the Republican Left of Catalonia agree to form a new government and hold a referendum on independence.