The 1978 Constitution of Spain was a significant milestone, created through a consensus of various political parties and written by distinguished figures from diverse backgrounds. This landmark document conceptualized a future for Spain that accommodated autonomous nationalities and regions, setting a framework for governance that embraced regional diversity and pluralism.

As a result, Spain evolved into a nation characterized by seventeen autonomous communities, positioning it among the most advanced countries in Europe in terms of regional autonomy. This transformation marked a pivotal moment in Spanish history, as it aimed to promote unity while respecting the distinct identities of its various regions.