Asgardians' regenerative abilities enable them to have longer lifespans. While humans generally perceive them as immortal, Odin has pointed out they are not. Loki noted that, even though they are not truly immortal, Asgardians live much longer, "give or take 5,000 years".
"Loki Is About 16 Years Old In The MCU In Thor: The Dark World, Odin reminds Loki that Asgardians are not immortal and have lifespans as humans do, to which Loki responds: "Give or take 5,000 years." From this, it can be calculated that Asgardians live to about 5,100, with Loki being around 1050 years old in the MCU."
The villain in Marvel Cinematic Universe (MCU) is the strongest villain that Avengers have ever face. He's the son of Alars, a Titans, which considered as the strongest race, just like gods. But who would have thought if Thanos in MCU is thousand years old! His age even surpasses Thor, the god of thunder himself.
A primitive culture like the Vikings might have worshipped them as deities. But in Infinity War Thor says he is 1500 years old. That means he was born in the year 500 after Christ.
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Is Thor an immortal?
While Thor is powerful and his strength is said to be unmatched, he is not strictly immortal like other mythological gods. He is susceptible both to aging and to being killed in battle. Like other Norse gods, he must consume special apples kept by the goddess Idun to keep from aging.
Odin was born around mid-3480 B.C. (August 15th by modern dating systems). This makes him: 492.25156833, or 25.11075322 in human years, during the Thor: The Dark World flashbacks.
While Steve Rogers gets the title of the oldest human avenger, Thor Odinson, as the mighty Asgardian God of Thunder, has a much longer life span than any of his Earth-born friends.
In Thor: The Dark World, Odin reminds Loki that Asgardians are not immortal and have lifespans as humans do, to which Loki responds: "Give or take 5,000 years." From this, it can be calculated that Asgardians live to about 5,100, with Loki being around 1050 years old in the MCU.
And that is how Loki is still alive and ready to lead his own Disney+ show. Technically speaking, the real Loki — or rather, the Loki that fans have watched since 2011 — is still dead. The version in the series is from a different timeline, and he is at a distinct point in his character growth.
Loki has always delighted in cheating death, manipulating others into believing he was dead in order to hatch his next scheme. At the end of Thor, he apparently took his own life — but Loki survived death by plunging into one of the many portals he knew could be found in Yggdrasil.
Asgardians are not true immortals. They do age, albeit slowly, but are immune to all known Earthly diseases. Each Asgardian needs, and is allocated, a golden apple grown by Yggdrasil and tended by Idunn. Eating their own apple is essential for an Asgardian to maintain his or her physical vitality.
Odin has many names and is the god of both war and death. Half of the warriors who die in battle are taken to his hall of Valhalla. He is the one-eyed All-Father, who sacrificed his eye in order to see everything that happens in the world. He has two sons, Balder by his first wife Frigg and Thor by Jord.
In both the comics and the MCU movies, Asgardians likely get weaker when they get too old, same as us. Admittedly, it might be hard to notice because even the oldest and most out-of-sorts Asgardian can still take on a healthy number of highly-trained mortal warriors. Volstagg is commonly-stated to be past his prime.
Sif is introduced in chapter three of the Prologue section of the Prose Edda; Snorri's euhemerized account of the origins of Norse mythology. Snorri states that Thor married Sif, and that she is known as "a prophetess called Sibyl, though we know her as Sif".
Loki often hid a degree of jealousy that Thor was to become King, and felt that Odin perhaps favoured Thor over him. As Thor was always the center of attention, Loki found himself longing for a spotlight over the years, which manifested itself in extreme attention-seeking behaviour.
Thor. Blessed with the powers and long life of a god, Thor was undoubtedly the most powerful member of the initial version of the Avengers. Not only can he fly and transport between worlds, but he was also the only one capable of taking down Thanos, even after he had assembled all six Infinity Stones.
Hades is the oldest of the Olympians, but you kind of get the impression that he is as powerful as either of his brothers, Zeus or Poseidon. He's not a very warlike god so it's hard to say how good a fighter he was.
If the surviving stories about both Gods are taken at face value then Odin is far older, because Odin was alive before this world took anything like its current form and shape, whereas Zeus came long after.
Chronologically speaking, most scholars contest that Odin was created before Zeus . The earliest evidence for worship of Zeus goes back before 500 BCE, but Odin is attested by various Germanic tribes as far back as the 12th century BCE.
