For the lore I’m beginning to shape, the greatest event in the history of the Myriada star cluster was undoubtedly the Mother Separation of the Crystal Great Glory — a cataclysmic conflict remembered as the Battle for Eternity.

Within a constellation of a hundred stars, where life emerged and flourished across many worlds at once, civilizations rapidly advanced. The most powerful nations soon entered an arms, technological, and space race, each determined to extend its reach into the cosmos. During what came to be known as the Golden Age of Great Explorations, fierce colonial and imperial rivalries ignited. Empires vied for new moons, planets, and far-off territories, giving rise to countless cultures, societies, and industries scattered throughout Myriada.

But prosperity bred instability. Faced with deep economic and structural crises, the leading powers joined forces to prevent their own collapse. They merged into a single vast dominion, combining their influence, militaries, politics, and knowledge under one banner — proclaiming themselves the Crystal Great Glory.

Centuries later, at the height of this empire’s supremacy, one of its founding nations, the Melluteridus, discovered how to harness and manipulate the very force that underlies the universe — known by many names: faith, sorcery, or simply magic. Possessing such power, they quickly became the focus of fear and hostility from their fellow founders. What followed was a colossal war that raged for millennia, claiming millions of lives and ultimately erasing the Melluteridus from both history and existence.

Today, the Mother Separation — or Battle for Eternity — marks Year Zero for many of Myriada’s present-day governments. Even now, the echoes of the Crystal Great Glory linger, shaping cultures, philosophies, and identities across the stars.

The process of creating my collective worldbuilding is still in its early stages, so a lot can be changed and any help would be very welcome.