Question

How did externalities tie into the demise of Easter Island and its inhabitants?

Answer 1

Phases of Island Culture

Archaeological excavations of Easter Island reveal three distinct cultural phases: the early period (700-850 A.D.), the middle period (1050-1680) and the late period (post-1680). Between the early and middle periods, evidence has shown that many early statues were deliberately destroyed and rebuilt as the larger and heavier moai for which the island is most famous. During the middle period, ahus also contained burial chambers, and the images portrayed by moai are thought to have represented important figures that were deified after death. The biggest statue found dating to the middle period measures about 32 feet tall, and consists of a single block weighing about 82 tons (74,500 kilograms).

The late period of the island’s civilization was characterized by civil wars and general destruction; more statues were toppled, and many mataa, or obsidian spearpoints, have been found dating to that period. Island tradition claims that around 1680, after peacefully coexisting for many years, one of the island’s two main groups, known as the Short-Ears, rebelled against the Long-Ears, burning many of them to death on a pyre constructed along an ancient ditch at Poike, on the island’s far northeastern coast.

Outsiders on Easter Island

The first known European visitor to Easter Island was the Dutch explorer Jacob Roggeveen, who arrived in 1722. The Dutch named the island Paaseiland (Easter Island) to commemorate the day they arrived. In 1770, the Spanish viceroy of Peru sent an expedition to the island; the explorers spent four days ashore and estimated a native population of some 3,000 people. Just four years later, the British navigator Sir James Cook arrived to find Easter Island’s population decimated by what seemed to have been a civil war, with only 600 to 700 men and fewer than 30 women remaining.

A French navigator, Jean-Francois de Galaup, comte de La Perouse, found 2,000 people on the island when he arrived in 1786. A major slave raid from Peru in 1862, followed by epidemics of smallpox, reduced the population to only 111 people by 1877. By that time, Catholic missionaries had settled on Easter Island and begun to convert the population to Christianity, a process that was completed by the late 19th century. In 1888, Chile annexed Easter Island, leasing much of the land for sheep raising. The Chilean government appointed a civilian governor for Easter Island in 1965, and the island’s residents became full Chilean citizens.

Throughout the 19th century, South American slave raids took away as much as half of the Native population. Introduced disease, destruction of property, and enforced migration by European traders further decimated the Natives and led to increased conflict among those remaining. Perhaps this, instead, was the warfare the ethnohistorical accounts refer to and what ultimately stopped the statue carving.

It had been thought that South Americans made contact with Rapa Nui centuries before the Europeans, as their DNA can be detected in modern Native inhabitants. I have been involved in a new study, however, led by paleogeneticist Lars Fehren-Schmitz, which questions this timeline. We analyzed Rapanui human remains dating to before and after European contact. Our work, published in the journal Current Biology, found no significant gene flow between South America and Easter Island before 1722. Instead, the considerable recent disruption to the island’s population may have impacted on modern DNA.

Perhaps, then, the takeaway from Rapa Nui should not be a story of ecocide and a Malthusian population collapse. Instead, it should be a lesson in how sparse evidence, a fixation with “mysteries,” and a collective amnesia for historic atrocities caused a sustainable and surprisingly well-adapted population to be falsely blamed for their own demise.

Easter Island Today

An isolated triangle measuring 14 miles long by seven miles wide, Easter Island was formed by a series of volcanic eruptions. In addition to its hilly terrain, the island contains many subterranean caves with corridors that extend deep into mountains of volcanic rock. The island’s largest volcano is known as Rano Kao, and its highest point is Mount Terevaka, which reaches 1,665 feet (507.5m) above sea level. It has a subtropical climate (sunny and dry) and temperate weather.

Easter Island boasts no natural harbor, but ships can anchor off Hanga Roa on the west coast; it is the island’s largest village, with a population of roughly 3,300. In 1995, UNESCO named Easter Island a World Heritage site. It is now home to a mixed population, mostly of Polynesian ancestry and made up of the descendants of the Long-Ears and Short-Ears. Spanish is generally spoken, and the island has developed an economy largely based on tourism.

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