Yes, it is highly praised for its historical authenticity. Major characters like Thorfinn, Leif Erikson, King Canute, and Thorkell are based on real historical figures, and events like the Danish invasion of England are depicted with great detail, though some timelines and character interactions are dramatized.

This is the central philosophy of the series, taught by Thors and eventually realized by Thorfinn. It means that no human being is inherently born to be hated or killed, and that true strength lies in the refusal to inflict violence, breaking the cycle of hatred.

Season 1 (The War Arc) acts as a prologue, establishing the cruelty of the Viking world and Thorfinn's rage. Season 2 (The Slave/Farmland Arc) deconstructs that violence, focusing on Thorfinn's psychological recovery, atonement, and his transition from a warrior to a pacifist builder.

The historical Thorfinn Karlsefni was an Icelandic explorer who followed Leif Erikson's route to Vinland (North America) around 1010 AD. He attempted to establish a permanent settlement there, which matches the ultimate goal of the manga's protagonist.

Askeladd is one of anime's most complex antagonists. While he commits atrocities and kills Thorfinn's father, he also serves as a surrogate father figure and mentor. His actions are driven by a deep, hidden patriotism for his mother's homeland, Wales, making him a tragic, Machiavellian anti-hero.

Vinland refers to the coastal area of North America explored by Norse Vikings. In the series, it represents a semi-mythical 'promised land'—a warm, fertile place far from the wars and slavery of Europe, where Thorfinn hopes to build a peaceful nation.

Thorfinn adopts a vow of non-violence, but he is forced to fight to protect others. However, his fighting style changes drastically; he refuses to kill, using his skills solely for defense and incapacitation, embodying the 'true warrior' ideal.

The Jomsvikings were a legendary order of Viking mercenaries, semi-historical and highly disciplined. In the series, they represent the pinnacle of the 'warrior culture' that Thorfinn eventually rejects, valuing strength and death in battle above all else.

Yes, Cnut the Great (Canute) was a historical King of England, Denmark, and Norway. The anime depicts his transformation from a timid prince to a powerful, ruthless emperor who sought to unite the North Sea Empire.

Season 2 concludes the 'Slave Arc'. The manga continues with the 'Baltic Sea War Arc' and the final 'Vinland Arc', following Thorfinn's expedition to the west to establish his settlement.