"One day, when archaeologists in Sweden were surveying a forest in advance of a construction project, they made a perplexing find — the battered skulls of people who had lived about 8,000 years ago, including two that still had pointed stakes in them, a new study reports." Source: Live Science (2017).
"The Stone Age burial site held the remains of at least 11 adults and one infant. Curiously, the burial wasn't underground, but rather underwater: During the Stone Age, the skulls would have lain at the bottom of a small lake."
From the 2007 animated movie. Nothing like the poem, of course, but the carnage here is pretty entertaining.
"In medieval England, monsters were very different and sometimes quite ambiguous. Such is the case of Grendel in Beowulf. Revered as a primary example of Anglo-Saxon literature and western epic poetry, the text was originally written in Old English and dictates the story of the Scandinavian hero Beowulf and his attempts to aid the Danish king Hrothgar. One of the three reasons Beowulf is needed is to slay a strong monster that has been consistently plaguing the mead hall of Hrothgar . This monster is none other than Grendel - who, arguably, is as famous as - if not more than - Beowulf himself." Source: Ancient Origins.
"The precise nature of Grendel's being is never made fully clear. Interpretations of his character have ranged from giant to dragon to a Scandinavian berserker. He has been described as a bipedal brute with impenetrable scales and spikes in place of skin and is called a shadow walker in the text. The moniker might be indicative of Grendel's preference for darkness and shadows, or it might have a symbolic meaning explaining the creature Grendel was initially intended to be interpreted as. Regardless, the aforementioned description of the monster has long been a topic of debate among scholars."
"The blood eagle is a ritualized method of execution, detailed in late skaldic poetry. According to the two instances mentioned in the Sagas, the victim (in both cases a member of a royal family) was placed prone, the ribs severed from the spine with a sharp tool and the lungs pulled through the opening to create a pair of 'wings'. There is a continuing debate about whether the ritual was a literary invention, a mistranslation of the original texts or an authentic historical practice." Source: Wikipedia.
The Blood Eagle was a particularly nasty form of sacrificial execution, but did the Vikings actually put people to death this way? As far as I can tell, the only primary documentary evidence for the practice comes from sources such as the Orkneyinga Saga, the Heimskringla, the Tale of Ragnar's Sons, and a handful of references in other texts.
Note: The Tale of Ragnar's Sons describes (among other things) the execution of King Aella of Northumbria, a scene also depicted in Vikings.
Jarl Borg in Vikings is an entirely fictional character, I believe. Aella, on the other hand, was apparently a real king, though the sources for his life are limited and very little is known about his reign. According to some accounts, he was executed by the Vikings after they invaded Northumbria following the king's execution of the legendary Ragnar Lodbrok, another figure who may or may not have actually existed. How Aella died is a matter of conjecture, though, because the sources contradict each other:
"While Norse sources claim that Ragnar's sons tortured Ælla to death with a blood eagle, Anglo-Saxon accounts maintain that he died in battle, at York, on 21 March 867." (Wikipedia)
"Well into the last century, most historians of the Vikings accepted that the blood eagle was deeply unpleasant but very real. According to the eminent medievalist J.M. Wallace-Hadrill, its possible victims were not only Ælla of Northumbria but also Halfdán, the son of Harald Finehair (or Fairhair), king of Norway, and the Irish King Maelgualai [Mael Gualae] of Munster; in some interpretations, it is supposed that even Edmund the Martyr may have suffered the same fate."
One possibility is that the Blood Eagle was a real execution method sensationalized by later writers. For instance, the Welsh scholar and translator, Gwyn Jones, argues in A History of the Vikings (1968) that this "inhuman rite" was "unhappily no fiction ... but owes its eminence in pseudo-lore almost entirely to fiction ..." (footnote pp 119-220, 1968 edition)
It's also possible that the Blood Eagle is entirely fictitious. This seems to be the current consensus, but there's a lot of disagreement. Revisionist historians have challenged the idea that the Vikings were just a mob of cruel barbarians wearing horned helmets, but their depictions of "cuddly" Vikings went too far in the other direction. One of the main problems with our picture of the Vikings is that much of what we know about them was written by their enemies.
If the Blood Eagle is a literary invention, there's a good chance that this grisly method of execution was dreamed up by Christian writers trying to demonize the pagan Vikings. According to Wikipedia, "[t]here is debate about whether the blood eagle was historically practiced, or whether it was a literary device invented by the authors who transcribed the sagas. No contemporary accounts of the ritual exist, and the scant references in the sagas are several hundred years after the Christianization of Scandinavia." Considering the Christians' history of inventing martyr stories set in the Roman Empire, I wouldn't be surprised if they concocted similar atrocity stories about the Vikings.
Video from 2010.
When I first started to research this subject, I assumed there was a high probability that the Blood Eagle was a real thing because the Vikings are thought to have conducted human sacrifices and the Blood Eagle is, in a way, just another form of ritual sacrifice. As it turns out, though, the question of whether the Vikings actually killed people for religious purposes isn't all that straightforward.
There is some archaeological evidence that the Vikings may have sacrificed humans. For instance, "[a]t Trelleborg [Sweden] a sacrificial site was found from the time before the Viking fortress was erected in 980-81. In five c. 3 metre-deep wells human and animal skeletons were found, together with jewellery and tools. Of the total of five human sacrifices, four were young children aged between 4 and 7. " Source: National Museum of Denmark.
Blood sacrifice, including human sacrifice, was an intrinsic part of pagan religions. The historical sources for Viking human sacrifice are questionable, though, because they all seem to come, once again, from Christian accounts:
According to the National Museum of Denmark, "[t]here are several horrifying accounts of human sacrifices from the Viking period. The German bishop, Thietmar of Merseburg, describes how the Vikings met every nine years at Lejre on Zealand [Denmark] in January 'and offer to their gods 99 people and just as many horses, dogs and hens or hawks, for these should serve them in the kingdom of the dead and atone for their evil deeds.'"
A similar ritual (at a different location) is also depicted in Vikings.
"The German monk Adam of Bremen wrote a similar account in 1072 about the sacrificial tradition at [Gamla Uppsala] in Sweden, where the temple was devoted to Thor, Odin and Frey. Here the Vikings also met every 9 years to ensure the goodwill of the gods. 9 males of all kinds of living creatures were sacrificed in a holy grove nearby. According to Adam of Bremen dogs, horses and humans hung from the trees. The number 9 was apparently of magical significance to the Vikings and was involved in a number of rituals." (National Museum of Denmark)
"There has been extensive debate over whether these accounts were real or simply Christian propaganda."
I wouldn't be shocked to learn that the Vikings actually executed royal prisoners using the Blood Eagle. Even if the descriptions in the sagas were written for entertainment, they may have had some basis in fact. At this point, however, it looks like this particular form of execution was a literary invention derived from the skaldic poems and embellished by later Christian writers in yet another attempt to make the pagans look like cruel and bloodthirsty savages:
"One of the features of a skaldic poem is that it’s incredibly convoluted, like a cryptic crossword puzzle. If you have a reference to what appears to be the Blood Eagle in a skaldic verse, it’s quite likely this is a poetic conceit. Roberta Frank, at Yale, argues that the Blood Eagle is just the idea of a carrion bird scratching at the back of the dead. If you create lots of corpses, you are a very good warrior. That’s what is being referred to. But when later writers made prose stories around these skaldic verses, they seem to have interpreted it literally. So it’s quite likely that there was no such thing as this horrible form of torture, but it grew in the telling." Source: National Geographic (2017).
"The remains of a Viking ship have been discovered on a farm near a medieval church at Edøy, on the island of Smøla, in Norway." Source: Live Science.
"The ship, which is 52 to 56 feet (16 to 17 meters) long, appears to be part of a burial mound, suggesting that it was used to bury someone important, said its discoverers, archaeologists Manuel Gabler and Dag-Øyvind Engtrø Solem, both with the Norwegian Institute for Cultural Heritage Research (NIKU).
"They don't know if there is a skeleton or multiple skeletons inside the boat."
"When archaeologists excavated an unusual Viking grave site in Norway, they dug up two bodies … along with the remnants of two massive boats." Source: Live Science.
"After hundreds of years underground, only remnants of the wooden vessels remained, but the excavation team could tell the two boats had been stacked atop each other. Viking burial sites often feature boats, with some even boasting two buried near each other; but boats buried inside each other are 'essentially an unknown phenomenon,' Raymond Sauvage, an archaeologist at the Norwegian University of Science and Technology University Museum, said in a statement."
"...Archaeological evidence indicates the island of Öland was settled about 8000 BC, with excavations dating from the Paleolithic era showing the presence of hunter-gatherers. In the early Stone Age, settlers from the mainland migrated across the ice bridge that connected the island across the Kalmar Strait.
"Evidence of habitation of Öland occurred at least as early as 6000 BC, when there were stone age settlements at Alby and other locations on the island. Burial grounds from the Iron Age through the Viking Age are clearly visible at Gettlinge, Hulterstad and other places on the perimeter ridge including stone ships. There are nineteen Iron Age ringforts identified on the island, only one of which, Eketorp [next video], has been completely excavated, yielding over 24,000 artifacts."
Gettlinge, a village on the southwest part of the island, is known for its Viking stone ship burial ground. According to Wikipedia, "the principal evidence of life in the Gettlinge area from 1000 BC to 1000 AD is derived from the gravefields themselves. The Gettlinge Gravfeld is situated near the coast highway and contains some Bronze Agebarrows as well as the more prominent stone ship burials, making it one of the largest gravefields on Öland. These burials span the late Bronze Age, Iron Age and Viking age. Some of the individual standing stones are thought to predate the Viking era. Numerous artifacts have been recovered from gravefields elsewhere on Öland, including bronze chains and a bone needle case."
"The best known early paleolithic settlement occurs at Alby, situated on the east coast of the island, where excavations have revealed vestiges of wooden huts around a prehistoric lagoon. Artefacts retrieved include evidence of bear, marten, seal and porpoise, but also reveal hunting and gathering technologies through discovery of bone spears, elk antler harpoons and flint." (Wikipedia)
Many of these sites are located on the Stora Alvaret, a vast limestone plateau on the southern half of the island. This area is so rich in biodiversity and prehistory that it has been designated a UNESCO World Heritage Site:
"The southern part of Öland, an island in the Baltic Sea off the south-eastern coast of Sweden, is dominated by a vast limestone plateau. People have lived there for some five thousand years, adapting their way of life to the physical constraints of the island. As a consequence, the landscape is unique, and there is abundant evidence of a continuous human settlement from prehistoric times to the present." Source: UNESCO World Heritage List.
"The Odendisa Runestone ... sometimes called the Hassmyra Runestone, is a Viking Age runestone erected at Hassmyra, Västmanland, Sweden, that is a memorial to a woman." Source: Wikipedia. This area also contains Viking stone ship burials of women.
"The runic text carved on the serpent of the Odendisa Runestone contains a poem in fornyrðislag and is one of few runestones raised for a woman, and the only one in Sweden with a verse commemorating a woman ... The theophoric name Odendisa .., which means 'Goddess of Odin,' is a unique name and is not known from any other source."
"Stone ships were an early burial custom, characteristically Scandinavian but also found in Northern Germany and the Baltic states. The grave or cremation burial was surrounded by tightly or loosely fit slabs or stones in the outline of a ship. They are often found in grave fields, but are sometimes far from any other archaeological remains. " (Wikipedia)
"At first glance, Hnefatafl (prounounced 'nef-ah-tah-fel') might just look like a knock-off version of chess with Norse helms and impressive beards, but the game is at least 600 years older—already well-known by 400 A.D.—and is perhaps a lot more relevant to the conflicts of the 21st century." Source: Medium.com.
"Tafl games (also known as hnefatafl games) are a family of ancient Nordic and Celtic strategy board games played on a checkered or latticed gameboard with two armies of uneven numbers. Most probably they are based upon the Roman game Ludus latrunculorum [next video]. Names of different variants of Tafl include Hnefatafl, Tablut, Tawlbwrdd, Brandubh, Ard Rí, and Alea Evangelii. Games in the tafl family were played in Norway, Sweden, Denmark, Iceland, Britain, Ireland and Lapland. Tafl gaming was eventually supplanted by chess in the 12th Century, but the tafl variant of the Sami people, tablut, was in play until at least the 1700s." (Wikipedia)
"The Dane axe is an early type of battle axe, primarily used during the transition between the European Viking Age and early Middle Ages. Other names for the weapon include English long axe, Danish axe, and hafted axe." Source: Wikipedia.
These long axes look like they would be awkward and heavy, requiring a lot of strength to use, but "[i]n reality, battle axes in the Viking age were light, fast, and well balanced, and were good for speedy, deadly attacks, as well as for a variety of nasty, clever moves," according to Hurstwic.
Axes have several advantages over swords. They're cheaper, for instance, and most Viking farmers would probably have owned at least one short axe for chopping wood and so on:
"In a period when almost everything was constructed of wood, it is unsurprising that a large number of different axes existed. These were mostly used as tools for the construction of ships, houses and carts, as well as other objects, so many different sizes and types of axes were required. The axe was also put to very effective use on the battlefield. Sometimes it is difficult to tell whether an axe was used as a weapon or a tool. Perhaps the Vikings used their ordinary woodworking axes as weapons if the situation demanded it?" Source: National Museum of Denmark.
These were effective weapons. As seen in the video above, the long haft of the Dane axe could be used as a pole for parrying, striking and to maintain distance. Short-handled axes have one obvious disadvantage in that you have to get closer to your target for them to be effective, but there are all sorts of trade-offs when comparing these particular weapons.
The longer reach of the Dane axe made it particularly effective for fighting in shield walls:
"When in the shield wall, most attacks against your opponent are made overhead. The overhead attack is an attempt to hit over the top of the enemy’s shield while aiming at their head and trying to bash or split them in the head, neck, or shoulders. Most thrusts while in a shield wall formation would go against the enemy’s shield and open yourself up to similar attacks as you must open a small gap in the wall to allow you to thrust." Source: Spagenhelm.
"... the dane ax could be used to reach over the shield wall and be swung down upon the enemy’s heads and shoulders behind their shields. Their shields would also be shattered and split from the powerful overhead hacks by a dane ax armed viking warrior."
Maintaining distance and extending your reach were critical in these tightly packed shield wall battles. The Dane axe had its problems, but in general it was an excellent weapon, not only for swinging down over the shields, but for smashing through the shields themselves and for swinging at the legs of opponents. And the Dane axe could deliver devastating injuries. The next video shows a series of tests done on a pig carcass with various Viking weapons. The axe tests begin at around 10:23. Note: Even if a Dane axe couldn't penetrate mail armor, the impact alone could have been extremely damaging.
These axes had different types of blades, apparently. The next video demonstrates a Dane axe with a hook-shaped head that looks like it would have been useful against cavalry, among other things. A warrior could have reached up with an axe like this and hooked a rider off his horse, assuming he could get close enough in the first place.
Inevitably, new developments made this style of axe obsolete. According to Wikipedia, "[w]hile the use of the Dane axe continued into the 14th. century, axes with an armour piercing back-spike and spear-like spike on the fore-end of the haft became more common, eventually evolving into the Pollaxe in the 15th century [see next video]. The simple Danish axe continued to be used in the West of Scotland and in Ireland into the 16th century. In Ireland, it was particularly associated with Galloglas mercenaries."
"In the Old Norse written corpus, berserkers ... were warriors who purportedly fought in a trance-like fury, a characteristic which later gave rise to the modern English word 'berserk' ... Berserkers are attested to in numerous Old Norse sources, with their name literally rendered as 'bear-coats', along with úlfhéðnar ('wolf-coats')." Source: Wikipedia.
"...It is proposed by some authors that the northern warrior tradition originated in hunting magic. Three main animal cults appeared: the bear, the wolf, and the wild boar." The legend of the werewolf may be related to these ancient stories:
"Old Norse had the cognate varúlfur, but because of the high importance of werewolves in Norse mythology, there were alternative terms such as ulfhéðinn ('one in wolf-skin', referring still to the totemistic or cultic adoption of wolf-nature rather than the superstitious belief in actual shape-shifting). In modern Scandinavian also kveldulf ('evening-wolf'), presumably after the name of Kveldulf Bjalfason, a historical berserker of the 9th century who figures in the Icelandic sagas." (Wikipedia)
Berserkers, like Shieldmaidens, may be completely mythological. According to the National Museum of Denmark, there is little to no archaeological evidence that they ever existed. Assuming that they were real, however, and that the stories about their ultraviolent frenzies are accurate, what could account for their deranged behavior?
The Viking berserkers, we are told, went into battle in a trance-like rage and were supposed to be almost uncontrollable killing machines. Dressed in wolf and bear pelts, they would attack friend and foe alike and their homicidal madness sounds a lot like a drug-induced frenzy of some kind:
"This fury, which was called berserkergang, occurred not only in the heat of battle, but also during laborious work. Men who were thus seized performed things which otherwise seemed impossible for human power. This condition is said to have begun with shivering, chattering of the teeth, and chill in the body, and then the face swelled and changed its colour. With this was connected a great hot-headedness, which at last gave over into a great rage, under which they howled as wild animals, bit the edge of their shields, and cut down everything they met without discriminating between friend or foe. When this condition ceased, a great dulling of the mind and feebleness followed, which could last for one or several days." -- Fabing, Howard D. (1956). "On Going Berserk: A Neurochemical Inquiry. (Subscription-access only)
Note: A detailed commentary on berserkers in general and Fabing's paper can be found here.)
The legends suggest that the berserkers might have taken some kind of drug that caused these fits of berserkergang. Whatever it was, it came on with a rush of "shivering, chattering of the teeth and chill in the body," caused a spike in blood-pressure ("the face swelled and changed its color") and body temperature ("a great hot-headedness") and ended with a hangover with could last for days. No one really knows if the berserkers were high on something, but various candidates have been suggested:
"While some researchers believe the Berserkers simply worked themselves up into a self-induced hysteria before fighting, others maintain that it was sorcery, the consumption of drugs or alcohol, or even mental illness, that accounted for their behaviour. Some botanists have claimed that berserker behaviour could have been caused by the ingestion of the plant known as bog myrtle, one of the main spices in Scandinavian alcoholic beverages." Source: Ancient Origins.
The problem with the bog-myrtle theory is that the plant was commonly used to make beer back then and doesn't appear to produce this kind of dramatic effect on people. Maybe I missed something, but I couldn't find any mention of it in The Vaults of Erowid, a site which covers psychotropic plants and herbs in exhaustive detail.
Bog Myrtle (Myrica Gale) is a natural insect repellent, among other things. It was used (along with other herbs) to flavor beer in the middle ages until "hops supplanted gruit herbs for political and economic reasons." (Wikipedia). Bog Myrtle itself isn't psychedelic, as far as I can tell, but various mixtures of gruit herbs could act as euphorics and some of them had hallucinogenic or deliriant properties, so the idea that the Berserkers were stoned on some kind of herbal drink when they went into battle isn't all that outlandish.
"Helpful for enhancing lucid dreaming and astral work generally, bog myrtle was a flavoring for a type of European beer known as gruit up until the introduction of hops. The other components of gruit (1) were yarrow and wild rosemary. Some say this brew was behind the Berserkers [sic]. In northern Europe, bog myrtle and yarrow have been ingredients in fermented drinks made from grain, honey, or fruit since the Iron Age, and it is still used in Scandinavia to make a liqueur called 'snaps.'" Source: Alchemy Works.
(1) Medieval brewers used a wide variety of gruit herbs in their beer.
If the berserkers were high on something, the most likely candidate is gruit beer, but if they were that drunk it's hard to see how they could function very effectively. Some sources I've found speculate that they were tripping on the psychedelic amanita muscaria mushroom, but the psychoactive ingredient in the mushroom is muscimol, which is described as a "sedative-hypnotic," i.e., a tranquilizer -- just the opposite of what you would expect. Also, I've never heard of a psychedelic that consistently produces outbursts of violent rage. If the berserkers were taking a drug, it sounds like it was a medieval form of PCP.
Were the berserkers mentally ill? Again, it doesn't sound like it. Their furies seem to have been situation-specific, only occurring during battles or perhaps when they were working in their villages. If they were crazy they would've been prone to go berserk for no reason at all, but none of the sources I've found describe them flipping out at random. So, unless they were elite warriors who ate some plant that drove them into a homicidal rage the most plausible explanation for their reported behavior is that the berserkers are simply characters from Old Norse mythology. In other words, maybe they never actually existed.