Italy is largely homogeneous linguistically and religiously but is diverse culturally, economically, and politically. Italy has the fifth-highest population density in Europe — about 196 persons per square kilometer (490 per square mile).
The institutions of the Roman republic, born for governing a city-state, were unfit to rule over such a large empire. Furthermore, there was discontent both inside Rome and between Rome and its Italic allies, and the tension favored military commanders, who started taking dictatorial powers. The first of these was Sulla, who prevented an overthrow of the republic by Marius but became a sort of "lord protector" of the Senate until his death (78 BC). After him came Julius Caesar, who after conquering the Gaul (present day France) won a civil war against Pompey but was assassinated by senators fearing he would start a monarchy, in 44 BC.
Italy was invaded by the Visigoths in the 5th century, and Rome was sacked by Alaric in 410. By the end of the century the peninsula was mostly under Ostrogothic control, and the last Roman emperor, Romulus Augustus, was deposed in 476 by Theodoric the Great. The eastern half of the Empire, now centred on Constantinople, invaded Italy in the early 6th century, and the generals of emperor Justinian, Belisarius and Narses, conquered the Ostrogothic kingdom after years of warfare. The collapse of the Ostrogoths allowed the Lombards to fill the gap, and the Eastern Empire could not hold on to its reconquered territory against the Lombard invasion. The Lombards ruled Italy until the late 8th century when their kingdom was conquered by Charlemagne.
Italy has a diversified industrial economy with roughly the same total and per capita output as France and the United Kingdom. This capitalistic economy remains divided into a developed industrial north, dominated by private companies, and a less developed agricultural south, with 20% unemployment. In comparison to its western European neighbours, it has a high number of small to medium sized enterprises (SMEes).
Italy is well-known for its art, culture, and several monuments, among them the leaning tower of Pisa and the Roman Colosseum, as well as for its food (pizza, pasta, etc.), wine, lifestyle, elegance, design, cinema, theatre, literature, poetry, visual arts, music (notably Opera), holidays, and generally speaking, for taste.
Football is the main national sport and the Italians are well known for their passion for this sport. Italy has won the Football World Cup three times: in 1934, 1938 and 1982.
In order to prevent the further expansion of Protestantism, the church endorsed the wars of the emperor Charles V (who was also king of Spain) and his successors, and started the so-called Counter-Reformation, with which it established a strict control over intellectual life in catholic countries.
The Church (and especially the bishop of Rome, the pope) had played an important political role since the times of Constantine, who tried to include it in the imperial administration.
Italy's economic performance has at times lagged behind that of its EU partners, and the current government has enacted numerous short-term reforms aimed at improving competitiveness and long-term growth. It has moved slowly, however, on implementing certain structural reforms favored by economists, such as lightening the high tax burden and overhauling Italy's rigid labour market and expensive pension system, because of the current economic slowdown and opposition from labour unions.
There have been frequent government turnovers since 1945. The dominance of the Christian Democratic (Democrazia Cristiana) party during much of the postwar period lent continuity and comparative stability to Italy's political situation.
Italy strengthened its ties with Germany on May 22, 1939 when both Nations signed the Pact of Steel This document solidified the alliance between the two regimes.
While the Allied troops slowly pushed the German resistance to the north (Rome was liberated in June 1944, Milan in April 1945) the monarchic government finally declared war on Germany, and an anti-fascist popular resistance movement grew, harassing German forces before the Anglo-American forces drove them out in April 1945.
The Apennine mountains form the backbone of this peninsula, leading north-west to where they join the Alps, the mountain range that then forms an arc enclosing Italy from the north. Here is also found a large alluvial plain, the Po-Venetian plain, drained by the Po River and its many tributaries flowing down from the Alps, Apennines and Dolomites. Other well-known rivers include the Tiber, Adige and Arno.
From 1992 to 1997, Italy faced significant challenges as voters (disenchanted with past political paralysis, massive government debt, extensive corruption, and organized crime's considerable influence) demanded political, economic, and ethical reforms. In 1993 referendums, voters approved substantial changes, including moving from a proportional to a largely majoritarian electoral system and the abolishment of some ministries (some of which have however been reintroduced with only partly modified names).