Well, I don't really know the specific story of Morg City. It could be a fictional place with all kinds of interesting characters, like a brave hero who tries to save the city from a mysterious threat, or it might be a place full of unique cultures and traditions.
Since I don't know the Morg City story well, I can only guess. There might be an event where a natural disaster struck the city, and the people had to come together to rebuild. Or perhaps a great wizard visited the city and brought magic that influenced its development.
The Avengers originated in Marvel Comics. Marvel has developed a vast universe of characters and storylines, and the Avengers are a key part of it. Their adventures have been adapted into various forms of media, including movies and TV shows.
Captain Marvel is Carol Danvers. She gained her powers through an interaction with alien technology and has become a powerful hero in the Marvel universe.
Marvel justifies Marvel Comics 1000 by presenting it as a celebration of their rich history and a platform to introduce fresh and exciting story arcs. It could also be a strategic move to attract new readers and reignite the passion of long-time fans.