"Adopted by consensus in 1992, the United Nations Minorities Declaration in its article 1 refers to minorities as based on national or ethnic, cultural, religious and linguistic identity, and provides that States should protect their existence. There is no internationally agreed definition as to which groups constitute minorities. It is often stressed that the existence of a minority is a question of fact and that any definition must include both objective factors (such as the existence of a shared ethnicity, language or religion) and subjective factors (including that individuals must identify themselves as members of a minority)." (Quoted from article)