This show is an absolute masterpiece! The creator did a really good job on this show. The team that research for the old versions of modern languages or death languages is insane. Old english, Old Russian, Old French (I can understand about 5% of it which is way different than modern French) The characters are great. The story begins where the Viking invasion starts in England around 763 (if i'm right). The story continue until the 10th - 11th century (season 6) where historical figures like Prince Oleg of Kiev relative to the legendary Riourik, Eric the Red which discover Greenland or Iceland. Otherwise notable kings from the Frank era and Anglo-Saxon era were portrayed in the show speaking there own languages at the time (pretty cool and interesting). Battles are just insane and well choreographed. You just wanna watch more of them. The Great Heathen Army and the battle following it is mind-blowing (the Battle of Paris as well). The show might not follow the exact timeline of History regarding to some character but they fit well in the purpose of the show.