Genetic clue to Easter Island mystery

by Sean McLachlan on

Easter Island has always been a puzzle to archaeologists and historians.

Hundreds of miles from the nearest land, this small Pacific island hosted a culture that built the famous Easter Island statues, and then vanished as mysteriously as it appeared.

Now DNA evidence has shed new light on where the Easter Islanders came from. It turns out that while most of the islanders’ heritage has roots in Polynesia, as scholars have long believed, they also have some South American ancestry.

Norwegian scientist Erik Thorsby has found genes among Easter Islanders that are only in South American Indian populations. These genes had recombined with Polynesian genes, something that only happens after many generations.

The findings are tentative because Thorsby only tested one extended family but supporting evidence comes from an excavation in Chile that found evidence of Polynesian visitors in the 14th and 15th centuries. Given that the Polynesians were arguably the best sailors of the preindustrial world, they probably went lots of places we don’t know about.

Ancient migrations were more common than most people believe, and in recent years DNA evidence has revealed many anomalies not recorded in history. It’s best to be cautious, however. Some overeager researchers called hyperdiffusionists want to see all sorts of cultures coming from one source–the Greeks or the Egyptians or whatever their favorite happens to be. They tend to make unsupported claims about places like America’s Stonehenge, which is probably not ancient, and descend into New Age archaeology.

As Thorsby’s findings show, real science can be much more exciting than myth making.

[Photo courtesy user davitydave via Gadling’s flickr pool]

Riddle of pyramid’s secret hieroglyphs solved

by Sean McLachlan on


Last month we reported on some secret writing discovered in the Pyramid of Cheops at Giza, near Cairo. A robot with a camera went down a mysterious passage only eight inches wide and found some hieroglyphs daubed with red paint onto the floor of a secret chamber at the end of the tunnel.

Egyptologist Luca Miatello has deciphered the writing and says they’re engineering marks. They make the number 121, which corresponds to the length in cubits of the so-called Queen’s Chamber of the pyramid.

The numbers are written in hieratic. Ancient Egyptian writing had three forms. Proper hieroglyphs were the most formal style and the one we usually associate with ancient Egypt. Hieratic was a cursive style that was quicker and easier to write. It was usually used for religious texts but since a royal tomb was a highly sacred place, it’s no surprise to find it here. Demotic was derived from hieratic and was used much later, after Egypt had lost most of its power and glory. All three styles are often termed “hieroglyphs”.

The numbers in the pyramid are sloppy, as if written by some foreman who wasn’t completely literate. Because of this, new interpretations of the writing will probably be published in the future.

[Photo courtesy Wikimedia Commons]

Volunteers needed to excavate Lawrence of Arabia’s battles

by Sean McLachlan on

A team of British archaeologists working in Jordan is tracing the military campaign of Lawrence of Arabia, and they need your help.

T.E. Lawrence was an English archaeologist turned soldier who capture the public imagination during World War One when he helped the Arabs rebel against the Ottoman Empire. After its disastrous defeat at Gallipoli at the hands of the Ottomans, the British Empire needed some good news from the Middle Eastern front.

The ten-year project started in 2006 and has already studied Ottoman fortifications, the Hijaz Railway (a favorite target of the Arab rebels), and an Arab army base. Besides traditional archaeology, the team is also recording oral histories of communities living near the battlefields. While all veterans of the campaign are dead, Arab culture is very much an oral one and many war stories have been passed down.

The project, run by the University of Bristol, is looking for volunteers for this year. Volunteers will work from November 14-28 in southern Jordan. The cost for participating is a hefty £2,450 ($4,017) but that includes airfare, food, and a three-star hotel.

For more information, check out the project’s website and blog.

[Photo courtesy Wikimedia Commons]

Mystery mound in England turns out to be ancient monument

by Sean McLachlan on


England’s prehistoric landscape has a new addition.

Marlborough Mound in Wiltshire has long been a mystery. The flat-topped cone of earth looks like a smaller version of Silbury Hill, pictured here. The bigger mound was finished around 2300 BC at a time when Neolithic farmers were erecting stone circles such as Stonehenge and Avebury. Now archaeologists have taken samples from Marlborough Mound and carbon dated them to 2400 BC.

Carbon dating, which measures decaying carbon isotopes in organic matter, has a slight margin of error that increases the older the sample is. Thus Silbury Hill and Marlborough Mound may have been finished simultaneously, or at least in the same generation. The two mounds are only about 20 miles apart, a day’s walk for a Stone Age farmer or excited archaeologist.

The mound was reused several times. The Romans had a settlement next to it and the Normans built a castle on top of and around it in the late 11th or early 12th century. Early Norman castles were wooden palisades around an artificial mound. In this case their prehistoric predecessors saved them some work. The wooden walls were later replaced with stone ones but the castle has long since vanished. In the 17th century the mound was turned into a garden. The mound stands on the grounds of Marlborough College and is off-limits to visitors. Hopefully that will change now that its true importance is understood.

Skeletons at royal castle in Scotland killed in battle, experts say

by Sean McLachlan on


Stirling Castle in Scotland was the scene of several brutal sieges and battles in its violent history. Now a new exhibition looks at the castle’s past and the grim discovery of several skeletons in the Royal Chapel showing signs of violent death.

One man had 44 skull fractures from repeated blows with a blunt object, and up to 60 more over the rest of his body. The Middle Ages were a pitiless time, and despite what modern romance novels say there wasn’t much chivalry. The skeleton of a woman had 10 fractures to her skull, resulting from two heavy blows. Neat, square holes through the top of her skull suggest she may then have fallen and been killed with a weapon such as a war hammer. At least five skeletons in the chapel showed signs of violent death. Carbon dating shows they died in several incidents between the 13th century and c.1450.

One of the skulls can be seen in this photo courtesy of Historic Scotland. Holding it is Dr. Jo Buckberry of Bradford University, who carried out the research on the skeletons.

The chapel was excavated as part of Historic Scotland’s restoration of the castle’s 16th century palace. The fact that the people were buried here indicates they were important.

One has been tentatively identified as Sir John de Stricheley, who died in 1341. Sir De Stricheley and the lady’s skeleton were featured last year on BBC2’s History Cold Case series.

Stirling Castle was an important castle on the boundary between Scotland and England and was besieged numerous times during the Wars of Scottish Independence (1296-1328 and 1332-1357). Several battles occurred nearby.

The exhibition, including facial reconstructions of Sir De Stricheley and the lady, will open June 4.

[Castle photo courtesy Finlay McWalter]