Europe (pronunciation: /ˈjʊərəp/ yewr-əp or /ˈjɜrəp/ yur-əp) is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting the Black and Aegean Seas. Europe is bordered by the Arctic Ocean and other bodies of water to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and the Black Sea and connected waterways to the southeast. Yet the borders of Europe—a concept dating back to classical antiquity—are somewhat arbitrary, as the primarily physiographic term "continent" can incorporate cultural and political elements.

Europe is the world's second-smallest continent by surface area, covering about 10,180,000 square kilometres (3,930,000 sq mi) or 2% of the Earth's surface and about 6.8% of its land area. Of Europe's approximately 50 states, Russia is the largest by both area and population (although the country has territory in both Europe and Asia), while the Vatican City is the smallest. Europe is the third-most populous continent after Asia and Africa, with a population of 733 million or about 11% of the world's population.

Europe, in particular Ancient Greece, is the birthplace of Western culture. It played a predominant role in global affairs from the 16th century onwards, especially after the beginning of colonialism. Between the 16th and 20th centuries, European nations controlled at various times the Americas, most of Africa, Oceania, and large portions of Asia. Both World Wars were largely focused upon Europe, greatly contributing to a decline in Western European dominance in world affairs by the mid-20th century as the United States and Soviet Union took prominence. During the Cold War, Europe was divided along the Iron Curtain between NATO in the west and the Warsaw Pact in the east. European integration led to the formation of the Council of Europe and the European Union in Western Europe, both of which have been expanding eastward since the fall of the Soviet Union in 1991.

Prehistory

Homo georgicus, which lived roughly 1.8 million years ago in Georgia, is the earliest hominid to have been discovered in Europe. Other hominid remains, dating back roughly 1 million years, have been discovered in Atapuerca, Spain. Neanderthal man (named for the Neandertal valley in Germany) appeared in Europe 150,000 years ago and disappeared from the fossil record about 28,000 BCE, with this extinction probably due to climate change, and their final refuge being present-day Portugal. The Neanderthals were supplanted by modern humans (Cro-Magnons), who appeared in Europe around 43 to 40 thousand years ago.

The European Neolithic period—marked by the cultivation of crops and the raising of livestock, increased numbers of settlements and the widespread use of pottery—began around 7000 BC in Greece and the Balkans, probably influenced by earlier farming practices in Anatolia and the Near East. It spread from South Eastern Europe along the valleys of the Danube and the Rhine (Linear Pottery culture) and along the Mediterranean coast (Cardial culture). Between 4500 and 3000 BC, these central European neolithic cultures developed further to the west and the north, transmitting newly acquired skills in producing copper artefacts. In Western Europe the Neolithic period was characterized not by large agricultural settlements but by field monuments, such as causewayed enclosures, burial mounds and megalithic tombs. The Corded Ware cultural horizon flourished at the transition from the Neolithic to the Chalcolithic. During this period giant megalithic monuments, such as the Megalithic Temples of Malta and Stonehenge, were constructed throughout Western and Southern Europe. The European Bronze Age began in the late 3rd millennium BC with the Beaker culture.

The European Iron Age began around 800 BC, with the Hallstatt culture. Iron Age colonisation by the Phoenicians gave rise to early Mediterranean cities. Early Iron Age Italy and Greece from around the 8th century BC gradually gave rise to historical Classical antiquity.

Classical antiquity

Ancient Greece had a profound impact on Western civilisation. Western democratic and individualistic culture are often attributed to Ancient Greece. The Greeks invented the polis, or city-state, which played a fundamental role in their concept of identity. These Greek political ideals were rediscovered in the late 18th century by European philosophers and idealists. Greece also generated many cultural contributions: in philosophy, humanism and rationalism under Aristotle, Socrates and Plato; in history with Herodotus and Thucydides; in dramatic and narrative verse, starting with the epic poems of Homer; and in science with Pythagoras, Euclid and Archimedes.

Another major influence on Europe came from the Roman Empire which left its mark on law, language, engineering, architecture, and government. During the pax romana, the Roman Empire expanded to encompass the entire Mediterranean Basin and much of Europe.

Stoicism influenced Roman emperors such as Hadrian, Antoninus Pius, and Marcus Aurelius, who all spent time on the Empire's northern border fighting Germanic, Pictish and Scottish tribes. Christianity was eventually legitimised by Constantine I after three centuries of imperial persecution.

Early Middle Ages

During the decline of the Roman Empire, Europe entered a long period of change arising from what historians call the "Age of Migrations". There were numerous invasions and migrations amongst the Ostrogoths, Visigoths, Goths, Vandals, Huns, Franks, Angles, Saxons, Slavs, Avars, Bulgars and, later still, the Vikings and Magyars. Renaissance thinkers such as Petrarch would later refer to this as the "Dark Ages". Isolated monastic communities were the only places to safeguard and compile written knowledge accumulated previously; apart from this very few written records survive and much literature, philosophy, mathematics, and other thinking from the classical period disappeared from Europe.

During the Dark Ages, the Western Roman Empire fell under the control of various tribes. The Germanic and Slav tribes established their domains over Western and Eastern Europe respectively. Eventually the Frankish tribes were united under Clovis I. Charlemagne, a Frankish king of the Carolingian dynasty who had conquered most of Western Europe, was anointed "Holy Roman Emperor" by the Pope in 800. This led to the founding of the Holy Roman Empire, which eventually became centred in the German principalities of central Europe.

The predominantly Greek speaking Eastern Roman Empire became known in the west as the Byzantine Empire. Its capital was Constantinople. Emperor Justinian I presided over Constantinople's first golden age: he established a legal code, funded the construction of the Hagia Sophia and brought the Christian church under state control. Fatally weakened by the sack of Constantinople during the Fourth Crusade, the Byzantines fell in 1453 when they were conquered by the Ottoman Empire.

Middle Ages

The economic growth of Europe around the year 1000, together with the lack of safety on the mainland trading routes, made possible the development of major commercial routes along the coast of the Mediterranean Sea. In this context, the growing independence acquired by some coastal cities gave the Maritime Republics a leading role in the European scene.

The Middle Ages on the mainland were dominated by the two upper echelons of the social structure: the nobility and the clergy. Feudalism developed in France in the Early Middle Ages and soon spread throughout Europe. A struggle for influence between the nobility and the monarchy in England led to the writing of the Magna Carta and the establishment of a parliament. The primary source of culture in this period came from the Roman Catholic Church. Through monasteries and cathedral schools, the Church was responsible for education in much of Europe.

The Papacy reached the height of its power during the High Middle Ages. A East-West Schism in 1054 split the former Roman Empire religiously, with the Eastern Orthodox Church in the Byzantine Empire and the Roman Catholic Church in the former Western Roman Empire. In 1095 Pope Urban II called for a crusade against Muslims occupying Jerusalem and the Holy Land. In Europe itself, the Church organised the Inquisition against heretics. In Spain, the Reconquista concluded with the fall of Granada in 1492, ending over seven centuries of Muslim presence in the Iberian Peninsula.

In the 11th and 12th centuries, constant incursions by nomadic Turkic tribes, such as the Pechenegs and the Kipchaks, caused a massive migration of Slavic populations to the safer, heavily forested regions of the north. Like many other parts of Eurasia, these territories were overrun by the Mongols. The invaders, later known as Tatars, formed the state of the Golden Horde, which ruled the southern and central expanses of Russia for over three centuries.

The Great Famine of 1315–1317 was the first crisis that would strike Europe in the late Middle Ages. The period between 1348 and 1420 witnessed the heaviest loss. The population of France was reduced by half. Medieval Britain was afflicted by 95 famines, and France suffered the effects of 75 or more in the same period. Europe was devastated in the mid-14th century by the Black Death, one of the most deadly pandemics in human history which killed an estimated 25 million people in Europe alone—a third of the European population at the time.

The plague had a devastating effect on Europe's social structure; it induced people to live for the moment as illustrated by Giovanni Boccaccio in The Decameron (1353). It was a serious blow to the Roman Catholic Church and led to increased persecution of Jews, foreigners, beggars and lepers. The plague is thought to have returned every generation with varying virulence and mortalities until the 18th century. During this period, more than 100 plague epidemics swept across Europe.

Early modern period

The Renaissance was a period of cultural change originating in Florence and later spreading to the rest of Europe. in the 14th century. The rise of a new humanism was accompanied by the recovery of forgotten classical Greek and Arabic knowledge from monastic libraries, often re-translanted from Arabic into Latin. The Renaissance spread across Europe between the 14th and 16th centuries: it saw the flowering of art, philosophy, music, and the sciences, under the joint patronage of royalty, the nobility, the Roman Catholic Church, and an emerging merchant class. Patrons in Italy, including the Medici family of Florentine bankers and the Popes in Rome, funded prolific quattrocento and cinquecento artists such as Raphael, Michelangelo, and Leonardo da Vinci.

Political intrigue within the Church in the mid-14th century caused the Great Schism. During this forty-year period, two popes—one in Avignon and one in Rome—claimed rulership over the Church. Although the schism was eventually healed in 1417, the papacy's spiritual authority had suffered greatly.

The Church's power was further weakened by the Protestant Reformation (1517–1648), initially sparked by the works of German theologian Martin Luther, a result of the lack of reform within the Church. The Reformation also damaged the Holy Roman Empire's power, as German princes became divided between Protestant and Roman Catholic faiths. This eventually led to the Thirty Years War (1618–1648), which crippled the Holy Roman Empire and devastated much of Germany, killing between 25 and 40 percent of its population. In the aftermath of the Peace of Westphalia, France rose to predominance within Europe. The 17th century in southern and eastern Europe was a period of general decline. Eastern Europe experienced more than 150 famines in a 200-year period between 1501 to 1700.

The Renaissance and the New Monarchs marked the start of an Age of Discovery, a period of exploration, invention, and scientific development. According to Peter Barrett, "It is widely accepted that 'modern science' arose in the Europe of the 17th century (towards the end of the Renaissance), introducing a new understanding of the natural world." In the 15th century, Portugal and Spain, two of the greatest naval powers of the time, took the lead in exploring the world. Christopher Columbus reached the New World in 1492, and soon after the Spanish and Portuguese began establishing colonial empires in the Americas. France, the Netherlands and England soon followed in building large colonial empires with vast holdings in Africa, the Americas, and Asia.

18th and 19th centuries

The Age of Enlightenment was a powerful intellectual movement during the 18th century promoting scientific and reason-based thoughts. Discontent with the aristocracy and clergy's monopoly on political power in France resulted in the French Revolution and the establishment of the First Republic as a result of which the monarchy and many of the nobility perished during the initial reign of terror. Napoleon Bonaparte rose to power in the aftermath of the French Revolution and established the First French Empire that, during the Napoleonic Wars, grew to encompass large parts of Europe before collapsing in 1815 with the Battle of Waterloo.

Napoleonic rule resulted in the further dissemination of the ideals of the French Revolution, including that of the nation-state, as well as the widespread adoption of the French models of administration, law, and education. The Congress of Vienna, convened after Napoleon's downfall, established a new balance of power in Europe centred on the five "Great Powers": the United Kingdom, France, Prussia, Habsburg Austria, and Russia.

This balance would remain in place until the Revolutions of 1848, during which liberal uprisings affected all of Europe except for Russia and the United Kingdom. These revolutions were eventually put down by conservative elements and few reforms resulted. In 1867, the Austro-Hungarian empire was formed; and 1871 saw the unifications of both Italy and Germany as nation-states from smaller principalities. Likewise, in 1878 the Congress of Berlin has conveyed formal recognition to the de facto independent principalities of Montenegro, Serbia and Romania.

The Industrial Revolution started in Great Britain in the last part of the 18th century and spread throughout Europe. The invention and implementation of new technologies resulted in rapid urban growth, mass employment, and the rise of a new working class. Reforms in social and economic spheres followed, including the first laws on child labour, the legalisation of trade unions, and the abolition of slavery. In Britain, the Public Health Act 1875 was passed, which significantly improved living conditions in many British cities. Europe’s population population increased from about 100 million in 1700 to 400 million by 1900. In the 19th century, 70 million people left Europe in migrations to various European colonies abroad and to the United States.

20th century to present

Two World Wars and an economic depression dominated the first half of the 20th century. World War I was fought between 1914 and 1918. It started when Archduke Franz Ferdinand of Austria was assassinated by the Bosnian Serb Gavrilo Princip. Most European nations were drawn into the war, which was fought between the Entente Powers (France, Belgium, Serbia, Portugal, Russia, the United Kingdom, and later Italy, Greece, Romania, and the United States) and the Central Powers (Austria-Hungary, Germany, Bulgaria, and the Ottoman Empire). The War left more than 16 million civilians and military dead. Over 60 million European soldiers were mobilised from 1914–1918.

Partly as a result of its defeat Russia was plunged into the Russian Revolution, which threw down the Tsarist monarchy and replaced it with the communist Soviet Union. Austria-Hungary and the Ottoman Empire collapsed and broke up into separate nations, and many other nations had their borders redrawn. The Treaty of Versailles, which officially ended World War I in 1919, was harsh towards Germany, upon whom it placed full responsibility for the war and imposed heavy sanctions.

Economic instability, caused in part by debts incurred in the First World War and 'loans' to Germany played havoc in Europe in the late 1920s and 1930s. This and the Wall Street Crash of 1929 brought about the worldwide Great Depression. Helped by the economic crisis, social instability and the threat of communism, fascist movements developed throughout Europe placing Adolf Hitler of Nazi Germany, Francisco Franco of Spain and Benito Mussolini of Italy in power.

Up to eight million people may have died in the Soviet famine of 1932–33. Stalin's Great Terror began in December 1934. By the time the purges subsided in 1938, millions of Soviet citizens had been executed, imprisoned, or exiled. In 1933, Hitler became the leader of Germany and began to work towards his goal of building Greater Germany. Germany re-expanded and took back the Saarland and Rhineland in 1935 and 1936. In 1938, Austria became a part of Germany too, following the Anschluss. Later that year, following the Munich Agreement, Germany annexed the Sudetenland, which was a part of Czechoslovakia inhabited by ethnic Germans. At the time, Britain and France preferred a policy of appeasement.

Shortly afterwards, Poland and Hungary started to press for the annexation of parts of Czechoslovakia with Polish and Hungarian majorities. Hitler encouraged the Slovaks to do the same and in early 1939, the remainder of Czechoslovakia was split into the Protectorate of Bohemia and Moravia, controlled by Germany, and the Slovak Republic, while other smaller regions went to Poland and Hungary. With tensions mounting between Germany and Poland over the future of Danzig, the Germans turned to the Soviets, and signed the Molotov-Ribbentrop Pact. Germany invaded Poland on 1 September 1939, prompting France and the United Kingdom to declare war on Germany on 3 September, opening the European theatre of World War II. The Soviet invasion of Poland started on 17 September and Poland fell soon thereafter.

On 24 September, the Soviet Union attacked the Baltic countries and later, Finland. The British hoped to land at Narvik and send troops to aid Finland, but their primary objective in the landing was to encircle Germany and cut the Germans off from Scandinavian resources. Nevertheless, the Germans knew of Britain's plans and got to Narvik first, repulsing the attack. Around the same time, Germany moved troops into Denmark, which left no room for a front except for where the last war had been fought or by landing at sea. The Phoney War continued.

In May 1940, Germany attacked France through the Low Countries. France capitulated in June 1940. However, the British refused to negotiate peace terms with the Germans and the war continued. By August Germany began a bombing offensive on Britain, but failed to convince the Britons to give up. In 1941, Germany invaded the Soviet Union in the ultimately unsuccessful Operation Barbarossa. On 7 December 1941 Japan's attack on Pearl Harbor drew the United States into the conflict as allies of the British Empire and other allied forces.

After the staggering Battle of Stalingrad in 1943, the German offensive in the Soviet Union turned into a continual fallback. In 1944, British and American forces invaded France in the D-Day landings, opening a new front against Germany. Berlin finally fell in 1945, ending World War II in Europe. The war was the largest and most destructive in human history, with 60 million dead across the world. More than 40 million people in Europe had died as a result of the war by the time World War II ended, including between 11 and 17 million people who perished during the Holocaust. The Soviet Union lost around 27 million people during the war, about half of all World War II casualties. By the end of World War II, Europe had more than 40 million refugees. Several post-war expulsions in Central and Eastern Europe displaced a total of about 20 million people.

World War I and especially World War II diminished the eminence of Western Europe in world affairs. After World War II the map of Europe was redrawn at the Yalta Conference and divided into two blocs, the Western countries and the communist Eastern bloc, separated by what was later called by Winston Churchill an "iron curtain". The United States and Western Europe established the NATO alliance and later the Soviet Union and Eastern Europe established the Warsaw Pact.

The two new superpowers, the United States and the Soviet Union, became locked in a fifty-year long Cold War, centred on nuclear proliferation. At the same time decolonisation, which had already started after World War I, gradually resulted in the independence of most of the European colonies in Asia and Africa. In the 1980s the reforms of Mikhail Gorbachev and the Solidarity movement in Poland accelerated the collapse of the Eastern bloc and the end of the Cold War. Germany was reunited, after the symbolic fall of the Berlin Wall in 1989, and the maps of Eastern Europe were redrawn once more.

European integration also grew after World War II. The Treaty of Rome in 1957 established the European Economic Community between six Western European states with the goal of a unified economic policy and common market. In 1967 the EEC, European Coal and Steel Community and Euratom formed the European Community, which in 1993 became the European Union. The EU established a parliament, court and central bank and introduced the euro as a unified currency. In 2004 and 2007, Eastern European countries began joining, expanding the EU to its current size of 27 European countries, and once more making Europe a major economical and political centre of power.

The culture of Europe can be described as a series of overlapping cultures; cultural mixes exist across the continent. There are cultural innovations and movements, sometimes at odds with each other. Thus the question of "common culture" or "common values" is complex.

The foundation of European culture was laid by the Greeks, strengthened by the Romans, stabilised by Christianity, reformed by the 15th-century Renaissance and Reformation, modernised by the 18th century Age of Enlightenment and globalised by successive European empires between the 16th and 20th centuries.

Europe makes up the western fifth of the Eurasian landmass. Land relief in Europe shows great variation within relatively small areas. The southern regions are more mountainous, while moving north the terrain descends from the high Alps, Pyrenees, and Carpathians, through hilly uplands, into broad, low northern plains, which are vast in the east. This extended lowland is known as the Great European Plain, and at its heart lies the North German Plain. An arc of uplands also exists along the north-western seaboard, which begins in the western parts of the islands of Britain and Ireland, and then continues along the mountainous, fjord-cut, spine of Norway.

This description is simplified. Sub-regions such as the Iberian Peninsula and the Italian Peninsula contain their own complex features, as does mainland Central Europe itself, where the relief contains many plateaus, river valleys and basins that complicate the general trend. Sub-regions like Iceland, Britain, and Ireland are special cases. The former is a land unto itself in the northern ocean which is counted as part of Europe, while the latter are upland areas that were once joined to the mainland until rising sea levels cut them off.

Europe lies mainly in the temperate climate zones, being subjected to prevailing westerlies.

The climate is milder in comparison to other areas of the same latitude around the globe due to the influence of the Gulf Stream. The Gulf Stream is nicknamed "Europe's central heating", because it makes Europe's climate warmer and wetter than it would otherwise be. The Gulf Stream not only carries warm water to Europe's coast but also warms up the prevailing westerly winds that blow across the continent from the Atlantic Ocean.

Therefore the average temperature throughout the year of Naples is 16 °C (60.8 °F), while it is only 12 °C (53.6 °F) in New York City which is almost on the same latitude. Berlin, Germany; Calgary, Canada; and Irkutsk, in the Asian part of Russia, lie on around the same latitude; January temperatures in Berlin average around 8 °C (15 °F) higher than those in Calgary, and they are almost 22 °C (40 °F) higher than average temperatures in Irkutsk.