Italians () are a nation and ethnic group native to Italy who share a common Italian culture, ancestry and speak the Italian language as a mother tongue. Legally, Italians are citizens of the Italian Republic, regardless of ancestry or country of residence (though the principle of jus sanguinis is used extensively and arguably more favorably in the Italian nationality law), and are distinguished from people of Italian descent and from ethnic Italians living in territories adjacent to the Italian Peninsula. In 2010, in addition to about 56 million Italians in Italy, Italian-speaking autonomous groups are found in neighboring countries: about half a million in Switzerland, a large population in France, and smaller groups in Slovenia and Croatia, primarily in Istria and Dalmatia. Because of wide-ranging diaspora, about 5 million Italian citizens and nearly 80 million people of full or part Italian ancestry live outside of Italy, most notably in South America, North America, Australia and parts of Europe. Italians have greatly influenced and contributed to science, arts, technology, cuisine, sports and banking abroad and worldwide. Italian people are generally known for their localism, both regionalist and municipalist, attention to clothing and family values.