system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel Cinematic Universe] Are the Asgardians we see the same as the Asgardians worshiped by ancient Vikings?

Are the Thor, Loki, Odin, and so on that we see the same beings worshiped centuries ago by Vikings? If so, does time pass at the same rate in Valhalla as on Earth, making Thor and company centuries old? Or is there some kind of time slip effect, and Thor is perhaps only several decades old, rather than centuries?

Conversely, is it possible that Asgard has actually passed through Ragnarok one or more times since the time of Vikings, and the Asgardians we see are simply retracing the cycle of creation and destruction laid out in their own mythology?
gpt
The oldest plausible evidence of Loki-worship, a rock with a depiction carved into it, dates to about 1000 AD. We know the Casket of Ancient Winters was captured in 965 AD, that Loki was a baby at that time, and he appeared to be an adult by the time the rock was made.

Evidence of Thor-worship, though, goes back to the 7th century, and Thor appears to be roughly as old as Loki. Odin-worship arguably goes to the 6th century.

Keep in mind, Asgardians have mastered wormhole technology. Wormholes are bridges in space-time, not just space. It's possible that time travel is used in certain circumstances.