This arrangement emerged during the course of the 20th century. Since the passage of the Statute of Westminster in 1931 the pan-national Crown has had both a shared and separate character, and the sovereign's role as monarch of New Zealand has been distinct to his or her position as monarch of the United Kingdom. As a result of this development, the monarchy has ceased to be an exclusively British institution, and in New Zealand has become a New Zealand establishment. Nonetheless, the monarchy is often still inaccurately described as "British" in both legal and common language, for reasons historical, political and of convenience; this conflicts with not only the New Zealand Government's recognition of a distinctly New Zealand Crown, but also the sovereign's distinct New Zealand title.