Spain is a constitutional monarchy, with a hereditary monarch and a bicameral parliament, the Cortes Generales or National Assembly. The executive branch consists of a Council of Ministers presided over by the President of Government (comparable to a prime minister), proposed by the monarch and elected by the National Assembly following legislative elections.
Spain was part of the Roman Empire and many areas of Spain retain significant Roman architectural remnants. The Roman aqueduct at Segovia is still in use as of 2004; Mérida, now the Extermaduran capital but once the capital of the Roman province of Lusitania, retains over 5 miles of its Roman aqueduct, Roman bridge over the River Guadiana, an arch of Trajan, and significant remnants of a Roman forum, amphitheatre, and a temple popularly accounted to have been dedicated to Diana (goddess). Another Roman bridge crosses the Tagus River at Alcántara. Lesser Roman ruins can be found in the heart of Barcelona.
The original peoples of the Iberian peninsula (in the sense that they are not known to have come from elsewhere), consisting of a number of separate tribes, are given the generic name of Iberians. This may have included the Basques, the only pre-Celtic people in Iberia surviving to the present day as a separate ethnic group. The most important culture of this period is that of the city of Tartessos. Beginning in the 9th century BC, Celtic tribes entered the Iberian peninsula through the Pyrenees and settled throughout the peninsula, becoming the Celt-Iberians.
After World War II, being one of few surviving fascist regimes in Europe, Spain was politically and economically isolated and was kept out of the United Nations until 1955, when it became strategically important for U.S. president Eisenhower to establish a military presence in the Iberian peninsula. This opening to Spain was aided by Franco's rabid anti-communism.
Through a policy of alliances with other European nobility and the conquest of most of South America and the West Indies, Spain began to establish itself as an empire. The Treaty of Tordesillas, negotiated by Pope Alexander VI between Portugal and Spain, effectively divided up the non-European world between these two budding empires. Massive amounts of gold and silver were imported from the New World into Spain's coffers. However, in the long run this hurt the Spanish economy much more than it helped it. The bullion caused high inflation rates, which undermined the value of Spain's currency. Additionally, Spain became dependent on her colonies for income, and when Queen Elizabeth I of England began to capture Spanish vessels on the way to and from the New World, Spain suffered massive economic losses. These effects, combined with the expulsion of Spain's most economically vital classes in the late 15th century (the Jews and the Moors), caused Spain's economy to collapse several times in the 16th century, bringing the Golden Age of Spain to a close.
At present, Spain is a constitutional monarchy, and is comprised of 17 autonomous communities. One of the most important problems facing Spain today is ETA's terrorism - this illegal organization defends Basque independence through violent means, which is condemned by both Central and Basque government, although there is tension between these governments since PNV (the party presently governing Basque Country) longs for greater autonomy from Spain, including the possibility of independence, something Spanish government doesn't accept.
Until 1714, Spain was a loose confederation of kingdoms and statelets, under the same king, until King Philip V removed the autonomous status of the Aragonese crown. Moreover, the creation of a unified state in the 19th and 20th centuries has lead to the present situation, apparently simple, but sometimes extremely confusing. During the Second Spanish Republic (1931-1936), the Basque and Catalan were given limited self-government, which was lost after the Spanish Civil War (1936-1939) and restored in 1978 during the transition to democracy.
Mainland Spain is dominated by high plateaus and mountain ranges such as the Pyrenees or the Sierra Nevada. Running from these heights are several major rivers such as the Tajo, the Ebro, the Duero, the Guadiana and the Guadalquivir. Alluvial plains are found along the coast, the largest of which is that of the Guadalquivir in Andalusia, in the east there are alluvial plains with medium rivers like Segura, Júcar and Turia. Spain is bound to the east by Mediterranean Sea (containing the Balearic Islands), to the north by the Bay of Biscay and to its west by the Atlantic Ocean, where the Canary Islands off the African coast are found.
Spain suffered a shocking terrorist attack, the March 11, 2004 Madrid attacks on its capital's commuter train network, killing 200. Al-Qaeda has been blamed for this attack. Some have attributed the fall of the Aznar government to this attack, which took place just two days before the 2004 elections. At first the public believed ETA was responsible for the bombing. When they learned Al-Qaeda was the true culprit, many voters lashed out at the media and Aznar's government, believing the two had colluded to deceive the public.
Spain's natural surroundings have helped shape the culture of the nation. The success of the Basques in maintaining a separate culture over a period of millennia has doubtless been aided by the mountainous geography of their region. Several separate parts of Spain have strong maritime traditions, including inland ports on rivers: Seville, for example, was a major port until the Guadalquivir silted up. Since the availalability of mass air transport, Spain's Mediterranean beaches, especially those along the Costa del Sol, have drawn millions of tourists, providing considerable revenue (and enormous contact with the outside world) to a long-depressed and isolated area of the country.
With the approval of the Spanish Constitution of 1978 and the arrival of democracy, the old historic nationalities — Basque Country, Catalonia, Galicia and Andalusia— were given far-reaching autonomy, which was then soon extended to all Spanish regions, resulting in one of the most decentralized territorial organizations in Western Europe.
While the siesta — an hours-long mid-afternoon break from work — is generally in decline, the typical rhythm of the day in Spain remains relatively distinct from the European norm. Many shops and some museums (though relatively few other businesses) still split their hours into two distinct periods of opening with a two or three hour break in the middle; a paseo (stroll) in the early evening remains a common custom in many smaller cities and to some extent even in the larger ones; the dinner hour is the latest in Europe, typically about 10 p.m.; nightlife begins accordingly late, with many dance clubs (even in relatively small cities) opening at midnight and staying open until dawn; in Madrid in the summer there is nothing unusual about a live musical performance being scheduled for one or two o'clock in the morning.