Germany, officially the Federal Republic of Germany, is a country in Central Europe. It is bordered to the north by the North Sea, Denmark, and the Baltic Sea; to the east by Poland and the Czech Republic; to the south by Austria and Switzerland; and to the west by France, Luxembourg, Belgium, and the Netherlands. The territory of Germany covers 357,021 square kilometers (137,847 sq mi) and is influenced by a temperate seasonal climate. With 81.8 million inhabitants in January 2010, it has the largest population among member states of the European Union. Germany is historically called Das Land der Dichter und Denker (the land of poets and thinkers). German culture began long before the rise of Germany as a nation-state and spanned the entire German-speaking world. From its roots, culture in Germany has been shaped by major intellectual and popular currents in Europe, both religious and secular. As a result, it is difficult to identify a specific German tradition separated from the larger framework of European high culture. Another consequence of these circumstances is the fact that some historical figures, such as Wolfgang Amadeus Mozart, Franz Kafka and Paul Celan, though not citizens of Germany in the modern sense, must be considered in the context of the German cultural sphere in order to understand their historical situation, work and social relations.