sentences:  These eventually resulted in the iwi radio stations and a Māori Television channel, all of which actively promote the language.In 1987 Te Reo was made an official language of New Zealand, with the passing of the Māori Language Act.Activists also campaigned to change the names of landmarks such as mountains back to their original Māori names, and to end the mispronunciation of Māori words, especially by newsreaders and other broadcasters.