Continent Europe and Asia together as a single continent, dubbed "Eurasia". In this model, the world is divided into six continents, with North America and South America considered separate continents. Geologists use the term "continent" in a different manner from geographers. In geology a continent is defined by continental crust: a platform of metamorphic and igneous rock, largely of granitic composition. Some geologists restrict the term 'continent' to portions of the crust built around stable Precambrian "shield", typically 1.5 to 3.8 billion years old, called a craton. The craton itself is an accretionary complex of ancient mobile belts (mountain belts) from
Largest Fair on the Rhine the public. In 1910, the fair was moved to its present location, the fairgrounds on the left Rhine river bank in Düsseldorf’s district Oberkassel overlooking the city’s historic Old Town. Since then, the format and focus of the fair have changed significantly into the more secular and entertainment-oriented event it is today. Attendee numbers rose dramatically, and the event was stretched into 9 days. The name of the event developed in the 1970 simply into “Largest Fair on the Rhine” and has stuck since then. It is not only Germany’s fourth-largest fair but also one of the most important events