Challenges on the 40th anniversary of the Spanish constitution can Spain find a way to accommodate Catalonia?

This year marks the 40th anniversary of the Spanish constitution, which came into effect on 29 December 1978. But as Javier Garcia Oliva explains, the status of Catalonia within Spain represents a major challenge for the current constitutional order. He writes that while Pedro Sanchez has an unenviable task in disentangling all of the issues surrounding Catalonia, the events of 1978 might serve as inspiration for Spanish society as it seeks to find a way through the Catalan crisis.