Heyerdahl discovered, as is detailed in the book mentioned above, that the leading family on the Easter Island to this day are known as the "Long Ears" - and have a great family propensity for red hair, fair skin and thin noses, in stark contrast to the rest of the island's population, who are for greatest part dark, flat nosed and black haired. The red-haired people on Easter Island today claim descent from a white people known as the "long ears" - so called because they wore large ear rings which elongated their earlobes, and who arrived on the island by boat at some stage in history, the exact date of which is unknown. According to the oral tradition of the red-haired descendants on Easter Island today - who are now of mixed descent - these first red-haired white people on the island set up a kingdom under one Hotu Matua. These "long eared" white settlers then set up buildings and as part of their construction works, carved and set up the famous stone statues - which, of course, all have long ears and long noses - again in vivid contrast to the flat nosed natives. The stone statues have been dated at approximately 1600 years old: meaning that the settlement of the islands by these mysterious red-haired whites must have occurred around the year 500 AD. All the while, the tradition goes, the red-haired long ears used the dark skinned native inhabitants of the island, whom they called "short ears", as labor. According to the legend, the white long eared people were: "an energetic people who always wanted to work, and the short ears had to moil and toil and help them make the walls and statues, which led to jealousy and dissatisfaction." (Heyerdahl, ibid., page 122). "The long ears' last idea was to rid the whole of Easter Island of superfluous stone, so that all the earth could be cultivated. This work was begun on the Poike plateau, the easternmost part of the island, and the short ears had to carry every single loose stone to the edge of the cliff and fling it into the sea. This is why there is not a single loose stone on the grassy peninsula of Poike today, while the rest of the island is thickly covered with black and red scree and lava blocks."