The Constitution of 1978 is the fundamental law of Spain, establishing the country as a parliamentary monarchy. It was approved by referendum on December 6, 1978, following the end of the Franco dictatorship. The constitution outlines the structure of government, the rights of citizens, and the principles of democracy. This constitution marked a significant transition to democracy, promoting civil liberties and regional autonomy. It recognizes the diverse cultures within Spain, allowing for the establishment of autonomous communities. The Constitution of 1978 has been pivotal in shaping modern Spanish society and governance.