Europe is conventionally considered one of the seven continents which, in this case, is more a cultural and political distinction than a physiogeographic one. Physically and geologically, Europe is a subcontinent or large peninsula, forming the westernmost part of Eurasia. Europe is bounded to the north by the Arctic Ocean, to the west by the Atlantic Ocean and to the south by the Mediterranean and the Caucasus. Europe's boundary to the east is vague, but has traditionally been given as the Ural Mountains and Caspian Sea to the southeast: the Urals are considered by most to be a geographical and tectonic landmark separating Asia from Europe.

Europe is the world's second-smallest continent in terms of area, covering around 10,430,000 km² (4,020,000 sq mi) or 2.0% of the Earth's surface, and is only larger than Australia. In terms of population, it is the third-largest continent (Asia and Africa are larger) with a population of more than 705,000,000, or about 11% of the world's population.

Europe has a long history of cultural and economic achievement, starting as far back as the Palaeolithic, although this is true for the rest of the Old World as well. The recent discovery at Monte Poggiolo, Italy, of thousands of hand-shaped stones, tentatively carbon-dated to 800,000 years ago, may prove to be of particular importance.

The origins of Western democratic and individualistic culture are often attributed to Ancient Greece, though numerous other distinct influences, in particular Christianity, can also be credited with the spread of concepts like egalitarianism and universality of law.

The Roman Empire divided the continent along the Rhine and Danube for several centuries. Following the decline of the Roman Empire, Europe entered a long period of changes arising from what is known as the Age of Migrations. That period has been known as the "Dark Ages" to Renaissance thinkers. During this time, the Ottoman Empire conquered Istanbul formerly known as Constantinople and finished the Byzantine Empire and became the most important power of all Europe. Isolated monastic communities in Ireland and elsewhere carefully safeguarded and compiled written knowledge accumulated previously. The Renaissance and the New Monarchs marked the start of a period of discovery, exploration, and increase in scientific knowledge. In the 15th century Portugal opened the age of discoveries, soon followed by Spain. They were later joined by France, the Netherlands and the United Kingdom in building large colonial empires with vast holdings in Africa, the Americas, and Asia.

After the age of discovery, the ideas of democracy took hold in Europe. Struggles for independence arose, most notably in France during the period known as the French Revolution. This led to vast upheaval in Europe as these revolutionary ideas propagated across the continent. The rise of democracy led to increased tensions within Europe on top of the tensions already existing due to competition within the New World. The most famous of these conflicts was when Napoleon Bonaparte rose to power and set out on a conquest, forming a new French Empire that soon collapsed. After these conquests Europe stabilised, but the old foundations were already beginning to crumble.

The Industrial Revolution started in the United Kingdom in the late 18th century, leading to a move away from agriculture, much greater general prosperity and a corresponding increase in population. Many of the states in Europe took their present form in the aftermath of World War I. From the end of World War II through the end of the Cold War, Europe was divided into two major political and economic blocks: Communist nations in Eastern Europe (with the exceptions of Turkey and Greece) and capitalist countries in Western Europe and Southern Europe. Around 1990, with the fall of the Berlin Wall, the Eastern bloc disintegrated.

Geographically Europe is a part of the larger landmass known as Eurasia. The continent begins at the Ural Mountains in Russia, which define Europe's eastern boundary with Asia. The southeast boundary with Asia is not universally defined. Most commonly the Ural or, alternatively, the Emba River serve as possible boundaries. The boundary continues to the Caspian Sea, the crest of the Caucasus Mountains or, alternatively, the Kura River in the Caucasus, and on to the Black Sea; the Bosporus, the Sea of Marmara, and the Dardanelles conclude the Asian boundary. However, numerous geographers consider Azerbaijan's and Armenia's southern border with Iran and Turkey's southern and eastern border with Syria, Iraq and Iran as the boundary between Asia and Europe because of political and cultural reasons. The Mediterranean Sea to the south separates Europe from Africa. The western boundary is the Atlantic Ocean, but Iceland, much farther away than the nearest points of Africa, is also often included in Europe. There is ongoing debate on where the geographical centre of Europe is. For detailed description of the boundary between Asia and Europe .

Because of political, cultural and geographical differences, there are various descriptions of Europe's boundary. Therefore, in some sources, some countries are not included in Europe, while the other sources do include them.

Almost all European countries are members of the Council of Europe, the exceptions being Belarus, and the Holy See (Vatican City).

The idea of the European continent is not held across all cultures. Some non-European geographical texts refer to the continent of Eurasia, or to the European peninsula, given that Europe is not surrounded by sea. In the past concepts such as Christendom were deemed more important.

In another usage, Europe is increasingly being used as a short-form for the European Union (EU) and its members, currently consisting of 25 member states and the candidate countries negotiating for membership, and several other countries expected to begin negotiations in the future (see Enlargement of the European Union). This definition, however, excludes non-members such as Russia and Switzerland.

In terms of shape, Europe is a collection of connected peninsulas. The two largest of these are "mainland" Europe and Scandinavia to the north, divided from each other by the Baltic Sea. Three smaller peninsulas (Iberia, Italy and the Balkans) emerge from the southern margin of the mainland into the Mediterranean Sea, which separates Europe from Africa. Eastward, mainland Europe widens much like the mouth of a funnel, until the boundary with Asia is reached at the Ural Mountains.

Land relief in Europe shows great variation within relatively small areas. The southern regions, however, 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 northwestern seaboard, beginning in the western British Isles and continuing along the mountainous, fjord-cut spine of Norway.

This description is simplified. Sub-regions such as Iberia and Italy contain their own complex features, as does mainland Europe itself, where the relief contains many plateaus, river valleys and basins that complicate the general trend. Iceland and the British Isles 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.

Due to the few generalisations that can be made about the relief of Europe, it is less than surprising that its many separate regions provided homes for many separate nations throughout history.

Linguistic and cultural regions

The sub-division in several linguistic and cultural regions is much less subjective than the geographical sub-division, since they correspond to people's cultural connections. There are three main groups:

Germanic Europe

Germanic Europe, where Germanic languages are spoken. This area corresponds more or less to north-western Europe and some parts of central Europe. The main religion of the region is Protestantism, (except for France and Ireland) but the further south you go, you encounter more countries with a Catholic majority (particularly Austria but also Belgium). This region consists of: United Kingdom, Ireland, Iceland, Germany, Austria, Netherlands, Denmark, Sweden, Norway, Luxembourg, Liechtenstein, the Faroe Islands, German speaking part of Switzerland, the Flemish part of Belgium, the Swedish-speaking municipalities of Finland, and the South Tyrol part of Italy.

Latin Europe

Latin Europe, where the Romance languages are spoken. This area corresponds more or less to south-western Europe, with the exception of Romania and Moldova which are situated in Eastern Europe. The major religion is Catholicism, except in Romania and Moldova. This area consists of: Italy, Spain, Portugal, France, Romania, Moldova, French-speaking Belgium, Romandy, Romansh-speaking Switzerland, and Italian-speaking Switzerland.

Slavic Europe

Slavic Europe, where Slavic languages are spoken. This area corresponds, more or less, to Central and Eastern Europe. The main religions are Orthodox Christianity and Catholicism, with large Muslim populations in some parts formerly ruled by the Ottoman Empire. This area consists of: Belarus, Bosnia and Herzegovina, Bulgaria, Croatia, the Czech Republic, the Republic of Macedonia, Poland, Russia, Serbia and Montenegro, Slovakia, Slovenia and Ukraine.

Others

Outside of these three main groups we can find:

The Celtic nations: Scotland, Wales, Cornwall (within the United Kingdom); the Isle of Man (a British Crown dependency); Ireland; Brittany (within France). These are all nations where a Celtic language is spoken, or was spoken into modern times, and there is a degree of shared culture (see Pan Celticism). Also considered Celtic nations are both Galicia (Spain) and Asturias, (within Spain), whose own Celtic language died out a millennium years ago, and England where Celtic culture persists, and Celtic dialect remains in many regional dialects (see Cumbric), although England's Celtic languages died out as recently as the 18th century in Devon. Greece, the only country of "Hellenic Europe". In Hellenic Europe we can consider also the Greek Cypriot community. It is often associated with the Latin countries, due to the geographical and cultural ties to the Mediterranean Sea, and sometimes to the Slavic-Orthodox part of Europe due to the importance of Orthodoxy in Greece. Ibero-Caucasian, a group that includes ethnic groups throughout the Caucasus region (both North and South). Ibero-Caucasian languages are not linked to the Indo-European languages. This group includes Georgians, Abkhaz, Chechens, and a number of other smaller ethnic groups that reside in the Caucasus. Turkey and Azerbaijan have Turkic languages, classified as Altaic and not of Indo-European origin. Moreover, two are Muslim countries, as opposed to most of Europe where many denominations of Christianity prevail. Hungary, having a language not of Indo-European origin and distantly related to Finnish and Estonian. Due to its location, Hungary is normally grouped with Central or Eastern European countries. Finland and Estonia, whose languages are distantly related to Hungarian. They are normally associated with northern European countries. Finland is, due to cultural ties, considered part of the Nordic countries and Estonia is associated with Balticum. Armenia, although not considered as part of Europe geographically, has a language that constitutes a separate branch of Indo-European family of languages and the nation is considered to be European culturally. The Armenian language is spoken in Armenia and other European countries with Armenian communities (such as France, Greece, Belgium, Russia, Germany etc.) formed largely as a result of Armenian Genocide. Baltic languages are dominant in Lithuania and Latvia. These countries are referred as "Baltic countries", a term that (in its modern sense) indicates the states around the Baltic Sea, which gained their independence from Russia after WWI and came under Soviet rule in 1940, including Estonia.