Great Britain is one of largest states in Europe. England occupies slightly more than half of the entire territory of Great Britain, covering 130,395 km. Great Britain has a moderately oceanic climate with a large number of rains throughout the year. Temperatures vary depending on the season, but rarely fall below -12C or rise above +35C. According to the 2011 census (England), the total population of the UK was 63,181,775 people. Historically, people in the UK are considered a mixture of different ethnic groups that settled in its territory until the Xl century: the Celts, Romans, Anglo-Saxons, Vikings and Normans. The official language of Great Britain is English (de facto). The settlements by modern people of territories that later entered Great Britain began about 30,000 years ago and took place in waves.