1913       Ninety percent of Māori school children are native Māori speakers. Te Puke ki Hikurangi, Te Mareikura and other Māori newspapers publish national and international news and events in Māori as well as extensive coverage of farming activities.

1920s     Sir Āpirana Ngata begins lecturing Māori communities about the need to promote Māori language use in homes and communities, while also promoting English-language education for Māori in schools.

1930s     Māori remains the predominant language in Māori homes and communities. The use of English begins to increase, and there is continued support for English-only education by some Māori leaders.

1940s     Māori urban migration begins.

1950s     Māori urban migration continues. Māori families are 'pepper-potted' in predominantly non-Māori suburbs, preventing the reproduction of Māori community and speech patterns. Māori families choose to speak English, and Māori children are raised as English speakers.

1951       Māori population is recorded in the official census as 134,097 people.

1960s     Playcentre supporters encourage Māori parents to speak English in order to prepare Māori children for primary school.

1961       Hunn Report describes the Māori language as a relic of ancient Māori life.

Early 1970s          Concerns for the Māori language are expressed by Māori urban groups including Ngā Tamatoa and Te Reo Māori Society.

1972       Māori Language Petition signed by 30,000 signatories sent to Parliament. p

1973–78               NZCER national survey shows that only about 70,000 Māori, or 18–20 percent of Māori, are fluent Māori speakers, and most of these are elderly.

1975       Ngāti Raukawa, Ngāti Toa and Te Āti Awa initiate Whakatipuranga Rua Mano, a tribal development exercise which emphasises Māori language development.

1978       Rūātoki School becomes the first bilingual school in New Zealand.

1979–80               Te Ātaarangi movement established in an attempt to restore Māori language knowledge to Māori adults.

1981       Te Wānanga o Raukawa established in Ōtaki.

1982       Te Kōhanga Reo established in an attempt to instil Māori language knowledge in Māori infants.

1980s     Experiments in Māori radio broadcasting lead to the establishment of Te Upoko o te Ika and Radio Ngāti Porou.

1985       First Kura Kaupapa Māori established to cater for the needs of the Māori children emerging from Te Kōhanga Reo.

1985       Te Reo Māori claim WAI 11 brought before the Waitangi Tribunal by Ngā Kaiwhakapūmau i te Reo Māori. The number of Māori speakers is estimated to have fallen to about 50,000 or 12 percent of the Māori population.

1986       Te Reo Māori Report released by the Waitangi Tribunal, recommending that legislation be introduced to enable Māori language to be used in courts of law, and that a supervising body be established by statute to supervise and foster the use of the Māori language.  

1987       Māori Language Act passed in parliment. Māori declared to be an official language of New Zealand and Te Taura Whiri i te Reo Māori is established. Te Kōhanga Reo National Trust also established.

1989       Education Amendment Act provides formal recognition for kura kaupapa Māori and wānanga (Māori tertiary institutions). Government reserves radio and television broadcasting frequencies for use by Māori.

1991       Broadcasting Assets case initiated. Census records Māori population as 435,619.

Flora and Fauna Claim Wai 262 brought before the Waitangi Tribunal. The claim is about the place of Māori culture, identity and traditional knowledge in New Zealand's laws, and in government policies and practices. It concerns who controls Māori traditional knowledge, who controls artistic and cultural works such as haka and waiata, and who controls flora and fauna and the environment that created Māori culture.

1993       Māori broadcasting funding agency Te Māngai Pāho established to promote Māori language and culture. More than twenty iwi radio stations broadcast throughout the country.

Mai Time, Māori- and Pacific-focused youth television programme pilot launched.

1995       He Taonga Te Reo (Māori language year) celebrated. Hui Taumata Reo Māori held in Wellington. A national Māori language survey shows that the number of Māori adults who are very fluent speakers of Māori has fallen to about 10,000.

1996       Aotearoa Television Network broadcasts a trial free-to-air television service in the Auckland area.

Mai Time now broadcast on a weekly basis.

1997       A total of 675 kōhanga reo and 30 developing kōhanga reo cater to 13,505 children. There are 54 kura kaupapa Māori and three whare wānanga. Over 32,000 students receive Māori-medium education and another 55,399 learn the Māori language.

1998       Government announces funding for a Māori television channel and increased funding for Te Māngai Pāho. Government also announces that it has set aside a $15M fund for Community Māori Language Initiatives.

1999       Tūmeke, a Māori-language youth programme begins screening on Television 4.