Off the top of my head, events in popular science fiction that have "already occurred":
First Laughing Man Incident - Ghost in the Shell: Stand Alone Complex (2024)
Third Impact - Neon Genesis Evangelion (2015)
Fourth Corporate War - Cyberpunk (2022)
Geisel Library Walk - Rainbows End (2025)
2020 Tokyo Olympics - Akira (2020)