city hosts numerous cultural institutions, academies and universities, with 11% of the national total of enrolled students. Milan received 10 million visitors in 2018, with the largest numbers of foreign visitors coming from China, United States, France and Germany. The tourists are attracted by Milan's museums and art galleries that include some of the most important collections in the world, including major works by Leonardo da Vinci. The city is served by many luxury hotels and is the fifth-most starred in the world by Michelin Guide. Milan is also home to two of Europe's most successful football teams, A.C. Milan and Inter Milan, and one of Europe's main basketball teams, Olimpia Milano. Milan will host the Winter Olympic and Paralympic games for the first time in 2026, together with Cortina d'Ampezzo. Toponymy The etymology of the name Milan (Lombard: Milan ) remains uncertain. One theory holds that the Latin name Mediolanum comes from the Latin words medio (in the middle) and planus (plain). However, some scholars believe that lanum comes from the Celtic root lan, meaning an enclosure or demarcated territory (source of the Welsh word llan, meaning "a sanctuary or church", ultimately cognate to English/German Land) in which Celtic communities used to build shrines. Hence Mediolanum could signify the central town or sanctuary of a Celtic tribe. Indeed, about sixty Gallo-Roman sites in France bore the name "Mediolanum", for example: Saintes (Mediolanum Santonum) and Évreux (Mediolanum Aulercorum). In addition, another theory links the name to the boar sow (the Scrofa semilanuta) an ancient emblem of the city, fancifully accounted for in Andrea Alciato's Emblemata (1584), beneath a woodcut of the first raising of the city walls, where a boar is seen lifted from the excavation, and the etymology of Mediolanum given as "half-wool", explained in Latin and in French. According to this theory, the foundation of Milan is credited to two Celtic peoples, the Bituriges and the Aedui, having as their emblems a ram and a boar; therefore "The city's symbol is a wool-bearing boar, an animal of double form, here with sharp bristles, there with sleek wool." Alciato credits Ambrose for his account. History Prehistory and Roman times The Celtic Insubres, the inhabitants of the region of northern Italy called Insubria, appear to have founded a settlement around 600 BC. According to the legend reported by Livy (writing between 27 and 9 BC), the Gaulish king Ambicatus sent