How did Odin know about the Infinity Gauntlet?
In Thor, there is a scene where you can see what looks like the Infinity Gauntlet in Odin's vault. Later (in Avengers: Age of Ultron, IIRC) you learn that Thanos actually has the Infinity Gauntlet, raising some questions about the one in Odin's vault, which are answered in Thor: Ragnarok when Hela sees it in the vault, knocks it over, and proclaims it to be a fake.
After all this, Kevin Feige talked about how the Gauntlet in Odin's vault was originally mostly just an easter egg, but also gave an in-universe explanation for Odin having a fake Infinity Gauntlet; essentially that Odin was pretending to have it so people on Asgard wouldn't worry about it being used against them.
However, in Infinity War, Eitri tells Thor how Thanos came to Nidavellir and forced him to make the Infinity Gauntlet, then killed everyone and chopped off Eitri's hands, putting an end to everything there. It seems that no one was aware that Nidavellir was shut down or that any of this had happened, and seeing as how the Gauntlet was made for -- and went directly to -- Thanos, how did Odin come to know that it even existed and get details of what it looked like in order to create a fake for his vault?
Best Answer
We know that Thanos asked the dwarves to make the Gauntlet, not that he designed it.
The Infinity Stones are common knowledge for powerful people like Odin. So it is possible that someone invented the concept the Gauntlet to harness the power of the Stones, but Thanos was the (first?) one to really have it made.
It is shown in movies (for example Guardians of the Galaxy) that only powerful beings can safely handle an Infinity Stone. It is not clear that even Odin could use the powers of the six stones without being harmed. So we can guess that someone in the past designed the Gauntlet for this very purpose.
We may have more information in the sequel.
Edit (post-Endgame):
the dwarf version of the Infinity Gauntlet is not discussed in Endgame. However, Tony creates his own version of the Gauntlet to handle the Infinity Stones. Of course, he knew of Thanos' gauntlet from the Battle on Titan and talks with other characters, but this hints that the gauntlet is not amazing in itself, compared to the Stones, and that maybe the concept of an object holding the Stones was floating around.
Pictures about "How did Odin know about the Infinity Gauntlet?"
How did Odin get the Infinity Gauntlet?
The latest speculation suggests that Odin may have actually wielded the power of the Infinity Gems at one point in his lifetime. Courtesy of Reddit user K R H eff is a new theory claiming that the former Asgardian king may have previously used the Infinity Gauntlet to bring peace to the Nine Realms.Can Odin wield Infinity Gauntlet?
Originally Answered: In the MCU, did Odin know Thanos? Yes. Probably. At 1:33 Loki says \u201cI've seen worlds you've never known about\u201d, a reference to Thanos' empire.Does Odin know about Thanos?
A right-handed replica of the Infinity Gauntlet, complete with replicas of the Infinity Stones, was kept in Odin's Vault, guarded by the Destroyer. During her takeover of Asgard, Hela came across the Gauntlet and declared it to be a fake, knocking it off its pedestal.Marvel FINALLY Explains Odin's Infinity Gauntlet
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Alex Andrews, Faik Akmd, Philippe Donn, stein egil liland