Spanish transition to democracy
The Spanish transition to democracy, known in Spain as la Transición (IPA: [la tɾansiˈθjon]; 'the Transition') or la Transición española ('the Spanish Transition'), officially the Spanish State from 1975 to 1978 and Kingdom of Spain thereafter, was a period of modern Spanish history encompassing the regime change that moved from the Francoist dictatorship to the consolidation of a parliamentary system, in the form of constitutional monarchy under Juan Carlos I. The democratic transition began two days after the death of Francisco Franco, in November 1975. Initially, "the political elites left over from Francoism" attempted "reform of the institutions of dictatorship" through existing legal means, but social and political pressure saw the formation of a democratic parliament in the 1977 general election, which had the imprimatur to write a new constitution that was then approved by referendum in December 1978.
Source: Wikipedia — Spanish transition to democracy (CC BY-SA 4.0)