>> A cultural definition of Europe as the lands of Latin Christendom coalesced in the 8th century

The use of the term "Europe" has developed gradually throughout history. In antiquity, the Greek historian Herodotus mentioned that the world had been divided by unknown persons into three parts, Europe, Asia, and Libya (Africa), with the Nile and the River Phasis forming their boundaries—though he also states that some considered the River Don, rather than the Phasis, as the boundary between Europe and Asia. Europe's eastern frontier was defined in the 1st century by geographer Strabo at the River Don. The Book of Jubilees described the continents as the lands given by Noah to his three sons; Europe was defined as stretching from the Pillars of Hercules at the Strait of Gibraltar, separating it from North Africa, to the Don, separating it from Asia.

A cultural definition of Europe as the lands of Latin Christendom coalesced in the 8th century, signifying the new cultural condominium created through the confluence of Germanic traditions and Christian-Latin culture, defined partly in contrast with Byzantium and Islam, and limited to northern Iberia, the British Isles, France, Christianised western Germany, the Alpine regions and northern and central Italy. The concept is one of the lasting legacies of the Carolingian Renaissance: "Europa" often figures in the letters of Charlemagne's court scholar, Alcuin. This division—as much cultural as geographical—was used until the Late Middle Ages, when it was challenged by the Age of Discovery. The problem of redefining Europe was finally resolved in 1730 when, instead of waterways, the Swedish geographer and cartographer von Strahlenberg proposed the Ural Mountains as the most significant eastern boundary, a suggestion that found favour in Russia and throughout Europe.

Europe is now generally defined by geographers as the western part of Eurasia, with its boundaries marked by large bodies of water to the north, west and south; Europe's limits to the far east are usually taken to be the Urals, the Ural River, and the Caspian Sea; to the southeast, including the Caucasus Mountains, the Black Sea and the waterways connecting the Black Sea to the Mediterranean Sea.

Islands are generally grouped with the nearest continental landmass, hence Iceland is generally considered to be part of Europe, while the nearby island of Greenland is usually assigned to North America. Nevertheless, there are some exceptions based on sociopolitical and cultural differences. Cyprus is closest to Anatolia (or Asia Minor), but is usually considered part of Europe both culturally and politically and currently is a member state of the EU. Malta was considered an island of North Africa for centuries.

The geographic boundary drawn between Europe and Asia in 1730 follows no international boundaries. As a result, attempts to organise Europe along political or economic lines have resulted in uses of the name in a geopolitically limiting way to refer only to the 28 member states of the European Union. Conversely, Europe has also been used in a very expansive way by the Council of Europe which has 47 member countries, some of which territorially over-reach the Ural and Bosphorus lines to include all of Russia and Turkey. In addition, people in the British Isles may refer to "continental" or "mainland" Europe as Europe.
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