Posted by: @jasmine_tarkheena

There's been discussion about What do you think happened in Narnia between the end of MN and the start of LWW? But do you ever wondered what happened during the Golden age, when the Pevensies reigned in Narnia?

The difference between that thread and this thread however, is that the former was predicted on the fact that several major narrative events must, by necessity, have occured during that time period in order for the two stories to connect up properly.

The golden age however doesn't come with that same requirement. Sure, stuff probably would have happened, but nothing which needs to have occured because is a logical necessity that it must of occurred. Certainly nothing that is all that interesting or unexplained at any rate.

Therefore any answer I could provide would be, by definition, Fan Fiction, rather than a logical inference, unless there is a more concrete narrative gap you think needs explaining?

Yes, but I thought we could speculate on what happened during the Pevensies reign in Narnia. We do get a glimpse of it in HHB.

I wonder what was left of the White Witch's army have gone into hiding. Even though the end of LWW said that the Pevensies wiped them out until there was non left, it turned out not to be true. So it may have been possible that they went into hiding during the Golden Age.

Obviously, Rabadash was not the only suitor that Susan had. She had quite a lot of them. It makes one wonder if they were noblemen from Archenland or the Duke of Galma or King or princes of Terenbithinia.

"The Princes from within those parts desired (Lucy) to be their Queen." But what could "princes from within those parts" actually mean? Obviously, there hasn't been any other humans for about 100 years in Narnia (with the 100 year winter according to the Timeline). So what could "princes from within those parts" be referring to, one may wonder.

There's also the ship, Splendor Hyline. It kind of makes you wonder how the Pevensies learned shipping and navigation during their reign. During the White Witch's reign, it may have been impossible for Narnians to set sail on the Eastern Ocean, due to the cold winter. So the Pevensies could have learn something about shipping and navigation at one point.

Posted by: @jasmine_tarkheena

It is mentioned that the kings from across the ocean came to ask for Susan's hand in marriage and "princes from within those parts desired (Lucy) to be their queen." What could "princes from within those parts" possibly mean?

In the first book, which was meant to be self-contained, Narnia's the British mainland equivalent, and so the other countries by the same reasoning are shorthand for Germany, France, Belgium, Spain, etc. As British monarchs often married, in history, foreign royalty, like Henry VIII's first wife, who was from Spain. The "princes" signify that Susan as the elder silbling got a kind, while Lucy as the younger meant she had to be satisfied with a mere prince.

As more books were written, Galma, Terebinthia, and the Seven Isles came to signify those foreign countries. Though the first book makes those countries seem larger and grander.

But, at some point during the Pevensie reign humans did come back to Narnia, and in not insignificant numbers.

@cobalt-jade 

That could be it. Though it's hard to say. It could have been like the Telmarines in PC, where we learn near the end of the book that they were originally pirates from our world that found a chasm and settled in Telmar.

So then we don't really know if humans started coming back to Narnia during the Pevensies reign. Then of course, it's possible that Archenland, Calormen, Telmar, the Island of Terenbinthia, and the Seven Isles were not affected by the eternal winter that the White Witch had brought to Narnia, so it might be safe to say that there were humans in Narnia, just not in the region of Narnia itself until the Golden Age.

I've usually thought that Archenland and the other regions / countries you mention, were indeed not affected by the eternal winter. It would be logical that fairly soon in their reign, the Pevensies would hear about Archenland (being the closest country) and go there with Talking Animals from their royal staff. The Archenlanders would then discover that Narnia had changed, that the winter had gone and the country was ruled by human royals again, like in the old days.

Then there would be new communication between the countries, like there used to be, and soon even the other countries around them would join the communication - and there would be trade and travel like before, and the Narnians (the Pevensies especially) would need to learn about shipping and navigation.

It's logical that some humans from the other countries would decide to immigrate to Narnia, now that it had got rid of the White Witch's spell, so the human population in Narnia itself would increase again.

One of my favorite topics is the Golden Age and I ponder this sometimes. 

Part of me wants to write my own fanfiction in the style of Lewis to fill in my own gaps and imagination! 

I think it's implied a lot happens (as indicated in A Horse and His Boy) but it's genuinely hard to know. I think really anything could happen, from defeating enemies to finding new allies and friends. 

End of the day, it's hard to know exactly. It's easy to imagine what the Narnian universe could look and feel like though so really an open book for you to ponder and be creative with in light of what Lewis created.