Talk:Vikings/@comment-24444169-20150402074204/@comment-151.99.198.234-20150715144812

There is nothing that ever mentions the existence of a 'castle age', not even in a metaphoric sense.

So, assuming we're merely referring to the time period when castles became progressively more and more common, Wikipedia says: "A European innovation, castles originated in the 9th and 10th centuries".

In the 900, Scandinavia was almost entirely pagan, except for a few converted lords. I think it is too simplicistic to have designed them as christian, but since the creators have said they never looked for historical depth and accuracy my first comment was pointless indeed.