The Z=1 Stone World is the new name for Earth thousands of years after humanity vanished from the world and turned to stone.

Stone World

Earth 3,700 years after Humanity's Petrification.

Christened by Senku, the Stone World is still the Pre-Petrification World, claimed by nature and time. Statues of humans are littered around the world. There are still some intact civilizations, such as Ishigami Village.


Year 2004

  • January 4th: Senku is born. [1]
  • Byakuya failed JAXA's Astronaut Selection Trials. [2]

Year 2014

  • Senku and Taiju make a bodysuit that helps Byakuya learn how to swim.
  • Byakuya is accepted as a JAXA Astronaut.

Year 2019

  • May 31st: Byakuya, Lillian and Shamil on board a Soyuz rocket, launch into space from Baikonur Cosmodrome. [3]
  • June 2nd: Soyuz docked with the ISS, Sparrows across the world turn to stone.
  • June 3rd: The Stone Era begins, and the entire world is petrified. [4]
  • June 6th: Shamil, Connie and Lillian splash down on Earth. Byakuya, Yakov and Darya land on the nearest Island to where Shamil and the others landed so he can rescue them. It takes Byakuya 10 hours to rescue Shami, Connie and Lillian starting from when they splashed down. [5]

Year 2020 - 2021

  • Yakov and Darya have two children.

Year 2022

  • Shamil and Connie get married.

Year 2023 -

  • Connie passes away with Pneumonia.
  • Yakov and Darya sail to the mainlands in the hopes of bringing back antibiotics.
  • Shamil passes away with Pneumonia.
  • Byakuya begins writing The 100 Tales.
  • Lillian passes away with Pneumonia.[6]

Year 2040

  • Senku remains petrified within his school building counting. [7]

Year 2041 - 2050

  • A dam bursts washing Senku and Taiju away from their school.[8]

Year 2051

  • Senku lays petrified at the place he will wake up at in the Year 5738. [9]
  • Byakuya presumably passes away. [10]
  • After Byakuya's death at his request his family sealed his bottle of rare metals in The Soyuz Capsule using cement. [11]

Year 5721

Year 5723

Year 5730

Year 5736

  • Amaryllis and her four friends set out to sea, later to be caught by Mozu and Kirsiame who uses a petrification weapon to petrify all of the kids besides Amaryllis who narrowly escapes and swims away. [12]

Year 5738

  • Senku breaks from his rock prison April 1st after being petrified for 3715 years and 241 days. He gets to cultivating his own tools and developing a way to heal petrification. [13]
  • Taiju Oki breaks out around October 5. He reunites with Senku, and both of them begin to work on the depetrification formula.

Year 5739

  • Taiju and Senku perfect the formula around a year after Taiju's release. They free Tsukasa Shishio to protect themselves from a lion attack, and Yuzuriha soon afterwards.
  • The group separates following the betrayal of Tsukasa, who takes possession of the Cave of Miracles. Taiju and Yuzuriha will follow the fighter under the orders of Senku (which Shishio considers dead), while he will go towards the smoke signals sighted during the fight.
  • Senku meets Kohaku, a young inhabitant of the Ishigami Village. Here he found the Kingdom of Science and become the Village chief.
  • Tsukasa establishes the Empire of Might.

Year 5740

  • Stone Wars begin in early spring, which will be won by the Kingdom of Science.
  • Senku begins to look for a way to perform petrification.
  • The work to build the Perseus begins.

Year 5741

  • September 10th: The Perseus is completed and the journey to Takarajima (Treasure Island) begins. (3 years, 5 months, and 9 days since Senku broke out on April 1, 5738.) [14]


  1. Caleb Cook's Dr. Stone trivia ch56: 15th and 16th.
  2. Dr. Stone Manga — Vol. 5 Chapter 42, Failed due to a "Nasty charley horse during the swimming exam."
  3. Dr. Stone Manga — Vol. 5 Chapter 42, Soyuz Rocket Launches into space. "Three days later a mysterious flash of light turned everyone on the Earth's surface to stone."
  4. Caleb Cook's Dr. Stone trivia ch56: 16th. | Day of Petrification calculated.
  5. Dr. Stone Manga — Vol. 6 Chapter 44, The ISS Crew land near Japan 60 hours after the Petrification Event.
  6. Dr. Stone Manga — Vol. 6 Chapter 45, The fate of the ISS Crew is told.
  7. Dr. Stone Manga — Chapter 115, Seconds since petrification: 675, 102, 440 seconds.
  8. Dr. Stone Manga — Vol. 1 Chapter 1, A dam bursts destroying Senku's School.
  9. Dr. Stone Manga — Chapter 115, Seconds since petrification: 1, 014, 599, 230 seconds.
  10. Dr. Stone Manga — Chapter 115, Byakuya collapses in a river and presumably passes away.
  11. Dr. Stone Manga — Chapter 114 and Chapter 115, Byakuya tells his family to seal his rare metals in the Soyuz ones he passes away.
  12. Dr. Stone Manga — Vol. 12 Chapter 106
  13. Dr. Stone Manga — Vol. 2 Chapter 13, Senku calculates how much time has passed since being petrified.
  14. Dr. Stone Manga — Vol. 12 Chapter 99

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