Age 778 is a major year in the Dragon Ball universe.
- The 26th World Martial Arts Tournament takes place on May 7. Mr. Satan is the winner. Majin Buu comes in second.
- Around August 18
- The events of the movie Dragon Ball Z: Battle of Gods and Dragon Ball Super's God of Destruction Beerus Saga take place.
Dragon Ball: Xenoverse
Due to Demigra interfering with the timeline, alternate events happens in this year. After the changes to the timeline were fixed and Demigra was defeated these alternate events were erased and the timeline was returned to normal.
- After August 18
- Demigra uses the Dragon Balls to resurrect Frieza, Cell, and Kid Buu. He also takes control of Vegeta, Gohan, and Gotenks. The Future Warrior and Goku defeat Frieza, Cell, and Buu, and free the controlled Z Fighters. (game only)