Timeline (Earth-7045)

Over 13,800,000,000 B.C.

 * A Taa-an scientist named Galan desperately tries to save his species with the creation of the Cosmic Egg.
 * The Taa-an survivors slowly start to die over the course of several years as the universe dies around them, with Galen eventually becoming the only one left still alive.
 * The universe finally ends in heat death

Around 13,800,000,000 B.C.
The Big Bang goes off, resulting in the birth of a new universe, Yggdrasil being brought into existence with its first realm: Muspelheim. The abstract entities are created from the event, each embodying a specific concept, including:
 * Abraxas (Destruction)
 * Death
 * Eternity (Time and the Universe)
 * Infinity (Space)
 * Lord Chaos
 * Master Order
 * Oblivion (Non-existence)


 * The Living Tribunal is sent by the One-Above-All to act as the final judge of matters of grand importance, and as a mediator to the entities.


 * Eternity creates his own entity to serve as his scout in his ever-expanding universe: Unicron. However Master Order and Lord Chaos inadvertently meddle with the creation process, resulting in another being emerging from Unicron: Primus.


 * It was after this incident that Master Order & Lord Chaos together decided to create a being that would serve as the mediator between the duo, as well as other dichotomous concepts: the In-Betweener.


 * The energies given off by the Big Bang transform Galan into a being with power on par with the abstract entities.

Between 13,800,000,000 B.C. and 4,543,000,000 B.C.

 * The realm of Nifleheim comes into being.


 * The ice giant Ymir is born from the intermixing temperatures of Muspelheim and Nifleheim.


 * Ymir sleeps, the frost giant race emerging from his sweat.


 * A bovine-like creature named Audhumla is created from thwing frost, her milk feeding Ymir.


 * Audhumla frees a humanoid creature from ice, a man named Buri.


 * Buri gives birth to a son, Borr.


 * Borr marries a giant named Bestla.


 * Borr and Bestla have four sons: Cul, Odin, Vili, and Ve


 * Cul’s future reputation of the God of Fear begins with him killing several giants, sucking the blood of all but one, writing a blood message stating: “Gods do not live in the sky. We live on the Earth. And you do so at our pleasure.”


 * The sons of Borr kill Ymir. The resulting flow of blood proceeded to drown the frost giant race, all except the family of Bergelmir and himself by climbing onto a lur-like organic structure.


 * The sons of Borr uses Ymir’s corpse to create more physical concepts:
 * Water from his blood
 * Ground from his flesh
 * Mountains from his bones
 * Rocks and minerals from his teeth and jaw


 * Maggot-like creatures are birthed in Ymir's flesh. By the decree of the gods they acquired their level of understanding and appearance, becoming the dwarves, although they lived in the earth and in rocks.


 * The sons of Borr used Ymir’s skull to create the first atmospheres. Form there they invented the cardinal directions (north, south, east, and west), naming a dwarf after each of them.


 * The sons of Borr flung Ymir's brains into the air, and they became the clouds.


 * The sons of Borr then took the sparks and burning embers that were flying about after they had been blown out of Muspelheim, and placed them in the midst of Ginnungagap to give light to heaven above and earth beneath. To the stars they gave appointed places and paths.


 * In the sons of Borr gave land near the sea created by Ymir’s blood to the families of giants for their settlements.


 * Using Ymir’s eyebrows, the sons of Borr create an invisible barrier around a remote section of the Ginnungagap to create Midgard.


 * The sons of Borr stumble across two tree-like organisms, using them to create the first life in Ginnungagap.


 * In the middle of the world the sons of Borr built for themselves a stronghold named Asgard, called Troy by later generations. The gods and their kindred came to live in Asgard.


 * As the oldest son, Cul would inherit the throne of Asgard. However, he and his Worthy would soon spread fear throughout the realms, requiring Odin to overthrow and take Cul’s place. Cul’s name was subsequently wiped from history.


 * Odin marries Freyja, the daughter of Freyr. From this family has come all the kindred that inhabited ancient Asgard and those kingdoms that belonged to it. Members of this family are called the Æsir, and they are all divinities.


 * Galan altered physiology meant that he now required more power cosmic in order to stay alive. In desperation for survival - still clinging to the goal of keeping his race alive, even if it’s just him that’s left; Galan constructed a device to convert matter into power cosmic: the Elemental Converter. Over time however, as his power continued to grow, Galan’s hunger would be brought on even faster every time he consumed. This would lead him to convert premature planets (worlds where life didn’t exist, but would still be able to support it), but even that wouldn’t be enough, leading Galan with the need to consume planets of general, whether life existed on them or not. Galan would eventually become desensitized to the mass genocide that resulted from his hunger, keeping it at bay becoming all that mattered now, and in time the universe would fear him under a new name: Galactus, the Devourer of Worlds.


 * Over the course of his journeys across the universe, Unicron would begin to question his sole purpose in life, sparked from his first encounter with Galactus. Unicron would start to take a more aggressive and nihilistic mindset, concerning Primus and Eternity, though he spitefully still carried out his duties. Eventually however, Unicron would snap, going on a rampage, forcing Primus to try and intervene. As Unicron decried his existence, his growing rage would prolong the battle with his “brother”, fueling their conflict to the point their battle would continue on for millions of years to come.


 * A select group of individuals outlived not just each of their respective species, but also their home galaxies, thanks to their control over the so-called Power Primordial. These individuals would come to be known as the Elders of the Universe, joined by another being who would come to be known as the Stranger. The Elders make a deal with Death, making it so that she cannot claim their souls, granting the group total immortality.

4,534,000,000 B.C.

 * The planet Theia collides with another, Earth, causing the two planets to merge while also forming its own moon.


 * From this new planet, Odin creates his first son: Thor.

Between 4,534,000,000 B.C. and 22,000,000 B.C.

 * Odin creates the Bifrӧst to act as passage between the realms.

1870s

 * The first known instance of a costumed hero emerges, Carter Alade a.k.a. the Phantom Rider.

1910s

 * Montgomery Falsworth, a soldier in the British military, becomes a government agent: codenamed Union Jack.

2017

 * The Heroic Age begins, with the largest known, not to mention most popular, emergence of costumed heroes. But, now they also come bearing superpowers. The first heroes in the Heroic Age are the Fantastic Four: Dr. Reed Richards a.k.a. Mr. Fantastic, Susan Storm a.k.a. the Invisible Woman, Ben Grimm a.k.a. the Thing, and Johnny Storm, the second Human Torch.


 * Other costumed heroes soon follow: Dr. Bruce Banner a.k.a. the Hulk (although he won't become known for acts of heroism just yet), Peter Parker a.k.a. Spider-Man, Tony Stark a.k.a. Iron Man, Matthew Murdock a.k.a. Daredevil, and the X-Men.

more to be added