El País commentorates the 100th anniversary of the Tragic Week (July 25 – August 2, 1909) in this article.
The Tragic Week was a series of bloody clashes between the army and the working classes of Barcelona and other cities of Catalonia, backed by the anarchists, socialists and republicans. The only way that the authorities managed to stop the revolt from spreading to the rest of Spain was by falsely blaming it on Catalan separatism. More on this soon
Tragic Week – Wikipedia