Atea-vai-takere-kore / Te Tumu I

Chief and ariki [personage, non-mythological] (Te Ariki-tara-are, 1919).

Note, for the mythological sky father, please see here: Sky father Ranginui-a-Tamaku (Sky Father)

Notes
Māori may recognize this personage as Rangi (Te Ariki-tara-are, 1919).
For estimated date formula, "Polynesian scholars who know the race well, is that 25 years is nearer the truth, for the Polynesians married early, and many women come into the genealogies, who as a rule, marry very early. ... ...1850... ... comparing [Hawaii, Rarotonga, New Zealand] genealogical tables... ...24 generations..."[(1850-1255)=595/25=24] (Smith, 1904). I used: (103-108 great grandparent generations + 2) x 25) = 2625-2700 years, subtracting 2022, gave me circa 603-728 BC.

Note, Fiji is supposed to be included here for our purposes

(Skimel, 2016 [Image]).
Given the estimated birth of Atea-vai-takere-kore, considering the reaching of western Polynesian islands around 900 BC and considering the 1000 year pause according to Finney (1977), "commonly referred to as the long pause between the first populating of Western Polynesia including Fiji, Tonga, and Samoa..." (Wikipedia, 2022).

Sources

Finney, B. R. (1977). Voyaging Canoes and the Settlement of Polynesia. Science, 196(4296), 1277-1285.
https://www.jstor.org/stable/1744728

Gudgeon, W. E. (2022, July 17). Item 02 - [Cook Islands Maori genealogies, collected by W. E. Gudgeon] [Manuscript]. Pacific Manuscripts Bureau.
https://asiapacific.anu.edu.au/pambu/catalogue/index.php/cook-islan...

Kokaua, T. (2017). Arera-ukarau-te-ariki-katu-ki-te-rangi-ariki-nui.

Nicholas, H. (1892). Genealogies and historical notes from Rarotonga - Part I. The Journal of the Polynesian Society, 1(1), 20-29.
https://www.jps.auckland.ac.nz/document/Volume_1_1892/Volume_1%2C_N...

Royal, T. C. (2015, April 20). Hawaiki [Image]. Te Ara The Encyclopedia of New Zealand.
https://teara.govt.nz/en/artwork/3803/hawaiki

Smith, S. P. (1899). Hawaiki: the whence of the Maori, being an introduction to Rarotongan history: Part III. The Journal of the Polynesian Society 8(1), 1-48.
https://www.jps.auckland.ac.nz/document/Volume_8_1899/Volume_8,_No....

Smith, S. P. (1904). Hawaiki: The original home of the maori; With a sketch of Polynesian History. Whitcombe and Tombs Limited.
https://en.wikisource.org/wiki/Hawaiki_The_Original_Home_of_the_Maori

Skimel. (2016, November 11). File:Western Polynesia and Polynesian Outliers - fr.svg [Image]. Wikipedia.
https://commons.wikimedia.org/wiki/File:Western_Polynesia_and_Polyn...

Te Ariki-tara-are. (1919). History and traditions of Rarotonga. Part IV. The Journal of the Polynesian Society, 28(110), 55-78
.https://jps.auckland.ac.nz/document/Volume_28_1919/Volume_28%2C_No....

Wikipedia. (2022, December 18). Polynesia: History: Origins and expansion.
https://en.wikipedia.org/wiki/Polynesia