Most of the languages of Europe belong to the Indo-European language family. This family is divided into a number of branches, including Romance, Germanic, Baltic, Slavic, Albanian, Celtic, Armenian and Greek. The Uralic languages, which include Hungarian, Finnish, and Estonian, also have a significant presence in Europe. The Turkic and Mongolic families also have several European members, while the North Caucasian and Kartvelian families are important in the southeastern extremity of geographical Europe. The Basque language of the western Pyrenees is an isolate unrelated to any other group, while Maltese is the only Semitic language in Europe with national language status.
A demonstration or street protest is action by a mass group or collection of groups of people in favor of a political or other cause; it normally consists of walking in a mass march formation and either beginning with or meeting at a designated endpoint, or rally, to hear speakers. Historian Eric Hobsbawm says, "Next to sex, the activity combining bodily experience and intense emotion to the highest degree is the participation in a mass demonstration at a time of great public exaltation. Unlike sex, which is essentially individual, it is by its nature collective...and it can be prolonged for hours....It implies some physical action--marching, chanting slogans, singing — through which the merger of the individual in the mass, which is the essence of the collective experience, finds expression.'
Actions such as blockades and sit-ins may also be referred to as demonstrations. Demonstrations can be nonviolent or violent (usually referred to by participants as "militant"), or can begin as nonviolent and turn violent dependent on circumstances. Sometimes riot police or other forms of law enforcement become involved. In some cases this may be in order to try to prevent the protest from taking place at all. In other cases it may be to prevent clashes between rival groups, or to prevent a demonstration from spreading and turning into a riot.
The term has been in use since the mid-19th century, as was the term 'monster meeting', which was coined initially with reference to the huge assemblies of protesters inspired by Daniel O'Connell in Ireland. Demonstrations are a form of activism, usually taking the form of a public gathering of people in a rally or walking in a march. Thus, the opinion is demonstrated to be significant by gathering in a crowd associated with that opinion.