Earth is the homeplanet of humanity. It is also known as Midgard, once the center of the Nine Realms. It is also the home of superheroes and supervillains. Earth's science and technology created many superhumans who will be heroes and villains.
Earth has always been targeted by villains, time-travelling conquerers, ancient creatures, and aliens, but has withstood by the Avengers and neutral hero groups and individuals. It is also where ancient secrets are hidden by Asgardians like the Casket of Ancient Winters for example. It has a history of surviving various attacks from all hostile cosmic beings, villains, aliens, monsters etc.
