“Continent” derives from the Latinterra continēns [terra = “land”,continēns = present participle of the verbcontineō = con (“together”)+ teneō (“Ihold”). The meaning is therefore “land held together” or“connected land.”
Originally the term “continent” was applied to any area of land, of any size, not separated by water, including islands.
Concurrently, ever since the times of ancient Greek mariners and philosophers, the world was separated into “parts.” These parts were initiallyEurope andAsia, with the subsequent addition ofAfrica and, in 1507, of theAmericas. Only in the late nineteenth century suchparts of the earth came to be explicitly defined ascontinents.
Today, continents are understood to belarge, continuous, distinct masses of land, ideally (but not necessarily) separated by expanses of water. No required minimum size to qualify as “large” (or “very large”) has been defined, nor the requisite degree of physical separation. Continents are therefore defined byconvention rather than a strict criteria. The criteria used can be of geographical, historical, cultural, anthropological, political, or even of philosophical nature.
It depends. The loose definition ofcontinent results in numerous ways of separating the world into continents, with models ranging anywhere from 4 to 7 continents.
This is the most widely adopted model and it classifies the following seven continents:
Learn more about the7 continents.
There are two variations of the six-continent model:
This model adopts the criteria of both the six-continent models, resulting in the following 5 continents: Africa, Eurasia, America, Oceania (or Australia), and Antarctica.
An alternative five-continent model is the one adopted, among others, by the Olympic Charter, which excludes Antarctica as uninhabited and lists the following five:Africa,Europe,Asia,America, andOceania (or Australia).
This would probably be the correct subdivision if we adopted a strict definition of continents, ideally defined as large landmassesseparated by water. Furthermore, we should consider “separated” only what isnaturally separated, excluding therefore the separations resulting from the artificially made Panama Canal (which separates North and South America) and Suez Canal (which separates Africa from Eurasia).
Under this model, the four continents of the world are:Afro-Eurasia (orEurafrasia),America, and Australia (not Oceania, which combines Australia with smaller countries in the Pacific Ocean which are separated by water), andAntarctica.
An alternative four-continent model, introduced at the beginning of the 20th centry, includedEurope,Asia,Africa, andAmerica.
Prior to the end of the 18th and 19th century, two continents were sometimes recognized: theOld (Europe, Asia, and Africa together) and theNew (North and South America).
The United Nations Statistics Division (which we follow when reportingpopulation statistics on this website) groups countries into macro geographical (continental)regions and geographicalsub-regions rather than into continents. This system is referred to as theUnited Nations Geoscheme.
This classification identifies 6 regions: Asia, Africa, Europe (includes Russia), Latin America and the Caribbean (which includes South America, Central America, and the Caribbean), Northern America, and Oceania.