he famous carvings are massive, up to 40 feet (12 meters) tall and 75 tons in weight. They were decorated on top with “Pukao,” a soft red stone in the shape of a hat. The statues also have torsos buried beneath the heads.
Recent analysis of radiocarbon dating from the island indicate that Rapa Nui was first settled around A.D. 1200, a period in which Polynesians voyaged to the east Pacific and perhaps also to South America and California.
According to legend, a chief named Hotu Matu’a, having learned of Rapa Nui from an advance party of explorers, led a small group of colonists, perhaps no more than 100 people, to the island.
Their place of origin is a mystery and may have been the Marquesas Islands, located 2,300 miles (3,700 km) to the northwest of Rapa Nui. Another suggestion is Rarotonga, located 3,200 miles (5,200 km) to the southwest of the island. In any case, the voyage would have been an arduous one that may have involved tacking against the wind.
A deforested environment
When people first came to Rapa Nui, around 800 years ago, they would have found the island overgrown with palm trees, among other vegetation. In the centuries that followed Rapa Nui was deforested until, by the 19th century, the landscape was utterly barren.
How this occurred is a matter of debate. When people arrived at Rapa Nui they brought with them (whether intentionally or not) the Polynesian rat, a creature that reproduces rapidly and which the Polynesians sometimes consumed. This species had no natural enemies on the island and may have played a major role in deforestation.
The popular claim that the island’s palm trees were felled to create devices to move the moai statues is probably incorrect. According to ancient stories the statues “walked” from the quarries to their place on stone platforms (known as ahu) and, indeed, research has shown that two small teams using ropes can move the statues vertically. A recent demonstration of this was recorded on a YouTube video (below) by Terry Hunt, a University of Hawaii professor, and Carl Lipo, a professor at California State University Long Beach.
It is also noted by Hunt and Lipo that the deforestation of the island may not have led to a food crisis. They point out in their book, "The Statues that Walked" (Free Press, 2011) that abundant rocks on the island allowed for the construction of stone-protected gardens known as “manavai.” These stone gardens would have been supported by lithic mulching, a process by which minerals from rocks fertilize the soil.
The people of the island, it appears, had enough food not only to build and move statues, but also to develop a written script, today known as Rongorongo, which researchers are still trying to decipher.
In their book, Hunt and Lipo provide more evidence for the idea that the statues were moved vertically. They note the presence of pathways or “roads” that lead from quarry sites to moai locations in the southeast, northwest and southwest parts of the island.
“The evidence on the ground revealed that roads were not part of some overall planned network. Rather they are the remnants of paths that moai transporters took as they walk the statues across the landscape,” they write.
While this helps explain how the statues were moved around the island, it doesn’t explain why. Scholars don’t know what the reasons were for creating the statues, but they have noted several features that provide clues.
The statues on their platforms can be found ringing almost the entire coast of the island. Remarkably, despite their seaside location, every single one of the moai appears to face inland and not out to sea, suggesting that they were meant to honour people or deities located within Rapa Nui itself.
Construction of the moai statues appears to have stopped around the time of European contact in 1722, when Dutch explorers landed on Easter Day. Over the next century the moai would fall over, either intentionally pushed over or from simple neglect. Why construction was abandoned is another mystery. It’s known that disease ravaged the island’s people after contact and that the islanders had a desire for European goods. Early explorers recorded that hats were particularly popular among the people of the island.
Regardless of what the moai were intended for, and why construction of them stopped, today the popularity of the statues is higher than ever. Many statues have been re-erected on their ahu bases and Rapa Nui now has a population of more than 5,000 people, its hotels and facilities supporting a thriving modern tourism industry.
Jarus, Owen. 2012. “Easter Island (Rapa Nui) & Moai Statues”. Live Science. Posted: October 16, 2012. Available online: http://www.livescience.com/24021-easter-island-rapa-nui.html