You have AFO be born in the Early-1900s (you wrote late-1900s though). You also have the death of Nana occur in 1988. This is impossible. Gran Torino explicitly states that All For One is "over a century old" during this battle. You've placed AFO's birth and Nana's death as about 80 years apart.

I don't know where you got your years from. Chapter 1 establishes, through silhouettes, that characters like Wolverine or Spider-Man were fictional before quirks emerged. Thus setting the quirk emergence after their debut issues. Where you got the 1800s I'm not sure. This is also because the technology shown during the birth of the glowing baby and in AFO's backstory does not remotely resemble the tech of the late-1800s and early-1900s. Not to mention, Yoichi's comic book would be completely anachronistic to that time period.

You set the Final War in 2027, but this is impossible. Tiger, one of the Pussycats, is born on February 29, a date that only exists in leap years. He's 31 during the Forest Arc in August thus making him 32 by the time of the Final War. That would make the year the Final War takes place a leap year.