Tonga has the unique achievement of being the only indigenous Pacific island nation that was never formally colonized, though it was a British protectorate from 1900 to 1970.
(Of course, since the Brits never stuck their fingers into their political cake, Tonga's track record with democracy is a bit.... yeah.)
Would it have been possible for any other Pacific island nation to have dodged the bullet like that?
Suggestions other than Hawai'i are encouraged.