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)

Don’t forget 2021-01-17, “This is your wake up call. Thank you for staying at the New Darwin Inn.”

Johnny Neumonic (movie, 1995)

Several years ago when a meme about Back to the Future was going around I made: https://gifyu.com/image/blAbD