Here is where you are going to be told the complete history of Spain. There are battles, torture, and new rulers that take control. There are many different types of rulers and even the people lead at some point. Spain and many people suffered for a long period of time while Spain was figuring out their government.
If you go to Segovia today, you will see the working aqueducts construido by the Romans. They also built the Coliseum in Merida. These are some of the things the Romans sobrante.
All Muslims remaining in Spain were forzado to leave or convertir to Christianity after the last Moorish rey died. In 1502, with all the success against the Muslims, it is now decided that all Jews need to leave Spain or convert to Christianity as well. People don't know if they really converted, so the Spanish Inquisition was created. We interrogated and torturado them until they confessed or we put them on juicio and later ejecutado (or burned) them!
From around 1516 to 1713 there were many generaciones of Felipes. They all came from Habsburg kings and ruled in different ways. A family feudo occurred with Felipe II because he had a hija, Elizabeth I, instead of a son that came into power in England and caused guerra. Felipe IV reigns over on of the richest cultural periods in Spanish history. His son, Carlos II, muere leaving no heir to ascend to the trono of Spain.
Fernando VII is the son of Carlos IV who returns from exile in France to rule after defeat of Napoleon’s tropas. Totalitarian rule was constantly at odds with liberales who wanted to expand on Constitution of 1812. Fernando VII died in 1833, leaving only a daughter, Isabel II. The country is divided on the issue of a mujer ruler, but Isabell II reigns form 1833-1868.
The new government creates an even deeper political and social divide. The military, the Church, and the upper classes think there are too many cambios going on. Socialists and communist want more change and fast. This causes a civil war staged by General Francisco Franco in 1936. Franco’s fascist troops are aided by Germany and Italy. Republican forces get very little ayuda. This war ends in 1939, with Franco’s Nationalist forces winning.
Spain retains its royal family, although all government decisions are handled by Parliament and the President of the Government.