The Number of Continents Through the Lens of Modern Scientific Discourse Introduction: The Myth of the Universal Model The question “How many continents are there on Earth?” seems simple at first glance. Contrary to popular belief, there is no single “scientific” or “official” number. The answer ranges from four to seven or more, depending on the criteria used — geographical, geological, cultural, and historical. Modern scientific discussions reveal that the concept of “continent” is more a culturally-historical construct, evolving along with science. Key Criteria for Identifying Continents The discussions are based on a conflict between several approaches: Geographical (physical-geographical): A continent is a large mass of land separated from others by water bodies. This seems simple, but contradictions arise immediately. For example, North and South America are connected by the Isthmus of Panama, while Eurasia and Africa are separated by the Suez Canal. Why are they considered different continents? Other criteria come to the rescue here. Geological (tectonic): A continent is a large section of continental crust (25-70 km thick), located on an individual lithospheric plate and having a common geological history. This approach, dominant in modern science, radically changes the picture. Historical-cultural: A continent is considered a large region with a common history, culture, and political perception. It is this approach that explains why Europe and Asia, lying on the same Eurasian plate, have traditionally been considered different continents. Major Models and Their Justification Model 1: 4 continents (Afr Eurasia, America, Antarctica, Australia).This is the strictest physical-geographical model. It unites all connected land bridges: Afr Eurasia: Eurasia + Africa (connection through the Sinai Peninsula). America: North + South America (connection through Panama).This model is used rarely, primarily in some geographical overviews. Model 2: 6 continents (with vari ... Read more