Disclaimer: I do not own My Hero Academia, RWBY, Soul Eater, Fullmetal Alchemist, Sailor Moon, Magical Lyrical Nanoha, Madoka Magica, Kill La Kill, Bleach, Fairy Tail, One Piece, Cardcaptor Sakura, Dragon Ball, Dragon Ball Z, Dragon Ball GT, Dragon Ball Super, Blood Blockade Battlefront, Little Witch Academia, Black Rock Shooter, Hunter x Hunter, JoJo's Bizarre Adventures, and Yuki Yuna is a Hero. They all belong to their respective owners such as Shonen Jump, Studio TRIGGER, CLAMP, Studio Gokumi, Naoko Takeuchi, Yasuhiro Nightow, Monty Oum, Akiyuki Shinbo, Hiromu Arakawa, Atsushi Ohkubo, Hirohiko Araki, Ryohei Fuke, Gen Urobuchi, Akira Toriyama, Tite Kubo, Hiro Mashima and Yoh Yoshinari.
I thought it would be nice to establish some canon for the World of Heroes since I'll be doing a lot of things with this series so anyone new can look up the canon of my giant crossover universe. Have fun!
The World of Heroes Facts
The Convergence
After many months of study, the Convergence was a rather odd and somewhat strange event. It all occurred in Late December of 2019 when huge singularities in multiple universes formed and caused them to coalesce into one. No one was sure what brought the singularities on, but there has been speculation as to how it all occurred. One theory suggests that the singularities are the result of an event occurring in the space time continuum which then led to the singularities occurring, like something may have in fact caused a rupture and later 'reknitting' of the universes involved, creating an amalgamation of our world. It is by far the most plausible theory. Other theories state that maybe it happened when some sort of experimental technology went berserk and caused the physical barriers between the universes to collapse and even going as far as to say it was the work of God who grew bored and wanted to change things up. These theories have problems with credibility as no such technology could ever be produced at the time and that the thought of a deity being behind something so chaotic would be insane.
As a result, not only has the planet Earth become much bigger to accommodate several unidentifiable continents and landmasses across the ocean that were later identified roughly months after the event occurred and the Earth and all the other planets in the solar system have distanced themselves from the sun while two other moons formed above the Earth out of nowhere. Other results of this phenomenon include the arrival of the Grimm, changes in the overall climate, and disruption to the natural order. Because of the three moons, the tides have gone through a radical change, but thanks to the planet's size increasing, not many people were affected.
In any case, the Convergence has become an integral part of humanity's history thanks to the radical changes caused by this event.