At the crossroads between Europe and Africa, the Iberian Peninsula has always been a target for invading races and civilisations. The Romans arrived in the 3rd century BC but took two centuries to subdue the peninsula. Gradually Roman laws, languages and customs were adopted. In 409 AD, Roman Hispania was invaded by a massive contingent of Germanic tribes and by 419 a Visigothic kingdom had been established. The Visigoths ruled until 711, when the Muslims crossed the Strait of Gibraltar and defeated Roderick, the last Goth king.

By 714, the Muslim armies had occupied the entire peninsula, apart from the mountainous regions of northern Spain. The Muslim occupation of southern Spain (which the Spanish called Al-Andalus) was to last almost 800 years. During this period, the arts and sciences prospered, new crops and agricultural techniques were introduced and palaces, mosques, schools, gardens and public baths were built.

By the end of the 13th century, Castilla and Aragón had emerged as Christian Spain's two main powers, and in 1469 these two kingdoms were united by the marriage of Isabel, princess of Castilla, to Fernando, heir to the throne of Aragón. Known as the Catholic Monarchs, they united all of Spain and laid the foundations for the golden age

Spain developed an enormous empire in the New World, following Columbus' arrival in the Americas in 1492. Gold and silver came flooding into Spanish coffers from Mexico and Peru as the conquistadors claimed land from Cuba to Bolivia.

Spain's powerful world empire of the 16th and 17th centuries ultimately yielded command of the seas to England. Subsequent failure to embrace the mercantile and industrial revolutions caused the country to fall behind Britain, France, and Germany in economic and political power. Spain remained neutral in World Wars I and II, but suffered through a devastating civil war (1936-39). In the second half of the 20th century, Spain has played a catch-up role in the western international community; it joined the EU in 1986. Continuing challenges include Basque Fatherland and Liberty (ETA) terrorism and further reductions in unemployment.