Europe is 51 times larger than Nebraska (USA).
Area: 198,974 km2 US Census
Population: 1,868,516 (July 2013) US Census
Nebraska is a state that lies in both the Great Plains and the Midwestern United States. Its state capital is Lincoln. Its largest city is Omaha, which is on the Missouri River. Wikipedia
Area: 10,180,000 km2 DESA
Population: 738,199,000 (2012) DESA
Europe is, by convention, one of the world's seven continents. Wikipedia