First, Ragnar "Loðbrók" Sigurðsson and Hrólfur Rögnvaldsson, also known as Göngu-Hrólfur, existed generations apart. Ragnar is so called, as he wore skin pants with fur (furpants). Rollo is so known, because the man a giant ... he was so huge, that no Horse could carry him. Hrólfr never went to paris, he faught and won Normandí (Is Norman Dí) because he wanted Poppo, the duchess of that place. He fought, several days ... and was losing, until his father/uncle landed his Viking ships on the shores and aided him into Victory. The people of Normandí were after that, Northmen ... hense Norman Dí. In those days, rulers like Hrólfr, were known as "Díar", so the word Normandí, translates REX NORMANI.
Another extremely important fact, is human sacrifices and role of women. There were no human sacfices, as Viking despised Oðinn ... the Character Harvarðr has a relation to Óðinn, but he wasnt anything like Zeus, bedding women willy nilly. On the countrary, he was known as a fox, not to be trusted and could vanish into the earth. He was the god of wisdom (which is what being a fox means, wisdom), but Vikings would raid any such holy places, just as they would raid any other holy places without distinction. Also, Óðinn would never reveal himself as the character, that appeared as at Ragnars death (which is correctly picted), in this sense Óðinn and Þór are switching roles. And the role of women, is that women were Kings of the house, where they ruled extreme ... while men, were working outside. A man, violating a woman in her house ... would never be tolerated, in this sense Old Norse, were like Japan.
Also, the boats are wrong ... Starboard, is Starboard as it means Steerboard. The steer is physically on that side. To steer the boat, you would lean on the rodder handle, so your back would turn towards the "backboard" (bakborði), hense Starboard/Backboard. The mast and sail, and role of the ship is terribly wrong. Here the Knarr and Longboat are misunderstood. The longboat is a 12-oar (12 æringur), and its role is to sail on rivers, bays (hense vikingr vik=bay), and close to the shore line ... you cant sail the open sea on this boat. Also, you wouldnt carry provisions, like "dead animals" either. Youd carry meed (much like beer), and if you needed provisions you would have a Knarr with live stock ... which is the traiding ship, with its Sides much higher and this boat could sail the open seas and did as Ragnar sailed 3 large Knarr on his last voyage to England, not longboats. Also the sail is not lowered, the entire mast is taken down. Thus the longboat is a 12-oar ro-boat. Usually 12 to 16 oars, except for the long-worm, which was too long. The knarr, has a keel along the boat ... the longboat, does not have a real keel.
The characters existed, their relation is mixed, which is basically ok. But historic facts should be kept. Because the Vikings left one thing behind them, and it is the immense river system across Europe and Russia (which are actually swedes). They never sailed to Spain in this era, on the ocean ... they sailed down south, on the rivers (hense the longboats) and did not get all the way to rome in this era but historically travelled to rome and konstantinobel (Istanbul). And hrafna-flóki, the character who supposedly found Iceland ... which was originally found by Garðar, a Swede and settled by Ingólfr, not flóki. And Kattegat, is not a "place" nor has it anything to do with Norway. Its a narrow strait, between Denmark and Sweden (but historically only Denmark, or hringa-ríki). Ragnar is not a farmer, but a Danish prince (son of Sigurðr Hringr, king of Denmark aka Hringaríki).
Historically, Kattegat was a river ... which is written in Snorra-Edda and is correct. In the bottom of that strait, there are remains of settlements supporting this, but its 4 thousand years in the past which shows that some of the northmen had been in Scandinavia historically. There are migrations from two sides, to Scandinavia ... from the east (Belarus, Estland), to Stockholm (close to Uppsala) and from the south (Germany). Hense the swedes and danes, are known as two different, but related people ... danes are known as "shield bearers", not the swedes. When the migration happened, from the south after the fall of the roman empire and the beginning of the "fornaldarsögr", entire south of Scandinavia was infested with oak trees. And the settlers had to clear the woodlands, to make farms and settlements. Thus, the boat building and raids. The northmen, were primarily settlers and the result of two different migrant storms, that pushed into Scandinavia and caused others to leave and seek settlements elsewhere ... Danes in England (danalög), Swedes went back to the east, and built Kænugarð (Kiev) and ruled there for 500 years. And later, Norwegians to the Island, and even to England and Normandí, Hrólfr went from Norway, to Denmark then to Normandí.
Also, there were no "shield maidens" ... there were women in the raids, but there were also blámenn, people from the middle east and other places the Vikings went. And the vikings werent uneducated, nor were their housings sheds ... the long house, is incorrectly depicted inside and out and the same applies to most other housings in the series. The "runes" are letters not hieroglyphs ... and the northmen are the first to write in their own language, not the english ... all royals in europe in this era, depicted themselves as descendants of rome and greece and wrote and studied latin, hence the Viking era, itself. It is an era, born from conflict between cultures ... not the "popular" opinion that vikings went to raid, because they were beer drinking drunkards, thats bs to put it bluntly. The clash between these cultures went on for centuries, and people were burned on the stakes in the 15th century, if they dared to write with runes.
