Time Immemorial
Majin Buu is formed. He cycles between rampages and long hibernations. During numerous iterations of this cycle, he absorbs the evil elements of mankind, becoming steadily more violent as time passed.
Year 41 of the Divine Calendar
The Super Dragon Balls are formed by Zalama.
Year 42 of the Divine Calendar
Zalama formed an original refraction technique for the Super Dragon Balls so that their star marks remain the same no matter from what angle one looks at them.
Over 100 million years Before Age
King Kai's Planet is confirmed to exist.
75 million years Before Age
The 15th generation Supreme Kai, Old Kai, is sealed into the Z Sword[4] by the short-tempered Beerus after an argument over "some trifling thing" during one of their coordination meetings held every 1,000 years.
Chronoa and Mechikabura fight for the position of Supreme Kai of Time.
The position goes to Chronoa after she seals the evil Mechikabura away in the Crack of Time. She later defeats Demigra after he attempts to take over the Time Nest, and seals him in the Crack of Time.
10 million years Before Age
Moro threatened Universe 7 until he was defeated by Grand Supreme Kai and South Supreme Kai and imprisoned in the Galactic Prison.
5 Million years Before Age
Bibidi successfully summons or creates (depending on the source) Majin Buu who destroys thousands of planets. Four of the five Supreme Kais are killed with Buu absorbing both the South Supreme Kai and Grand Supreme Kai, adding an aspect of good to him, as well as changing his appearance. Eventually, the East Supreme Kai kills Bibidi and leaves Buu's shell on Earth.
239,906 years Before Age
Belmod becomes a God of Destruction in opposition of his friend Gicchin's beliefs.
239,856 years Before Age
Sometime around or after this point, the All Universe Hide and Seek Tournament had to be cancelled.
Shin becomes a Supreme Kai at some point after this.
6233 years Before Age
In the North Galaxy, the hero Mijorin fights bravely with an evil alien. In recognition of his deeds, after his death he is allowed to keep his body in the afterlife, and trains on the Grand Kai's world.
4237 years Before Age
Garlic Jr.'s ancestors migrate to planet Earth from their home, the Makyo Star.
2833 years Before Age
In the North Galaxy, the hero Sarta protects his home planet from "a meteor impact". In recognition of his deeds, after his death he is allowed to keep his physical body in the afterlife, and to train on Grand Kai's world.
1104 years Before Age
The past events of the Chilled Saga take place around this time.
739 years Before Age
Princess Snake becomes the princess of Snake Way and settles into her castle alongside it.
Circa 238 years Before Age
Yamoshi appears and wreaks havoc across the universe.237 years Before Age
Turtle is born.
226 years Before Age
Hirudegarn is reborn on the planet Konats, sparking the Hirudegarn war. A Konatsian Wizard defeats Hirudegarn with an enchanted sword and with the help of Tapion and Minotia, using magical ocarinas. Tapion and Minotia are locked into music boxes and are sent to opposite sides of the universe.
220 years Before Age
Hit is born around this time in Universe 6.
The Legendary Saiyan prior to Kale appeared around this time in Universe 6.
Circa 50 years Before Age
Korin and Bandages the Mummy are born.
Age 176
Fangs the Vampire is born.
Circa Age 250
Fortuneteller Baba begins her fortune-telling business.
Yahhoy, previously the last independent state on Earth, becomes part of the world government.
Age 261
King Yemma travels to Snake Way to receive training from King Kai. Princess Snake meets him and falls in love.
On Namek, violent storms ravage the planet, causing a drought. Katas sends his son away on a spaceship but dies before he can follow him. All Namekians, except for Guru and Lord Slug, perish. The child is forced to land on the planet Earth.
Age 430
Master Roshi is born.
Age 431
The Nameless Namekian becomes the apprentice of Earth's current Guardian.
Around the same time, Garlic also becomes the Guardian's pupil. He and the Nameless Namekian compete over who will be the next Guardian of Earth.
Master Roshi turns 18 and continues training under Master Mutaito. He falls in love with Fanfan causing a rift between himself and Master Shen.
Circa Age 450
Master Roshi climbs Korin Tower and reaches the top. He begins his training with Korin to obtain the Sacred Water.
Age 451
King Kai's encounter with Beerus.
Circa Age 453
Master Roshi is able to retrieve the Sacred Water from Korin, after three years of trying.
Age 459
Mercenary Tao is born.
Age 461
The child of Katas is the chosen one and ascends to the throne of Kami after separating himself from the evil in his being. The evil in Kami's being becomes King Piccolo. The King Piccolo wars begin. Piccolo is sealed in the Electric Rice Cooker by Mutaito's Evil Containment Wave. Mutaito dies as a result of performing the move.
Garlic tries to take over the Earth in response to Earth's Kami not choosing him as his successor. He is defeated and trapped by Kami.
Age 467
The four Kais (North, South, West, and East) get together for one of their few reunions.
Age 470
Kami creates the Dragon Balls.
Age 474
The demon king Dabura sends an underling to inspect the Earth.
Circa Age 550
The first Saiyans land on Planet Plant (later known as Planet Vegeta) using stolen spaceships after the destruction of their original home, Sadala.
Age 553
Master Roshi starts his world famous collection of dirty magazines.
Age 650
Roshi finds the Three-Star Dragon Ball washed up on his island.
The 1st World Martial Arts Tournament is held.
Age 658
Grandpa Gohan is born.
Age 662
Kami tells Mr. Popo what he remembers about his childhood.
Age 670
Tokunoshin Omori is born.
Age 681
C-6 is buried in the Nemuria Ruins.
Age 689
Manpuku Okawari is born.
Age 698
Monster Carrot is born.
Age 703
Hondawara is born.
Age 703-712
Nappa is born.
Age 706
Hijiki is born.
Age 707
Kurikinton Soramame is born.
Age 709
Aosa is born.
Age 710
King Chappa is born.
Age 711
Tamagoro Katayude is born.
Age 712
Dr. Briefs founds the Capsule Corporation after inventing the revolutionary "Hoi-Poi Capsules".
The evil scientist Dr. Wheelo schemes of using his advanced science to take over the Earth, restructuring humanity into an obedient cyborg race. However, a freak weather disaster seals him and his entire laboratory within an eternal wall of ice. The people attribute this to divine judgment. Wheelo's robotic assistant Dr. Kochin is left behind and begins searching for a way to free his master.
Age 713
Mozuku is born.
Age 714
Ruhna, King Chappa's wife is born.
Juliana dies of unknown causes.
Age 715
Emperor Pilaf and Ninja Murasaki are born.
Age 716
Mount Kiwi erupts, the Hikui Birds died out, leaving only an egg.
Age 717
Giran and Senbei Norimaki are born.
Age 719
Man-Wolf is born.
Age 720
Tights and Akira are born.
The 13th World Martial Arts Tournament is held with Master Roshi becoming the winner.
Age 720-730
The Saiyan-Tuffle war takes place.
On the brink of destruction, the Tuffles use their remaining scientific power to develop a parasitic life-form to one day take revenge on the Saiyans. The Tuffle King inserts his own genes into the cells of this life-form, which is then launched into space.
The Tuffle scientist Dr. Lychee creates Hatchiyack, a "hatred-amplification device" he intends to use as a weapon to eradicate the Saiyans. Lychee is killed by Great Ape Saiyans and Hatchiyack is launched into space with Lychee's corpse inside.
Age 721
Nam and An Azuki are born.
Age 722
Midori Norimaki and General Blue are born.
Age 726
Ranfan and Aoi Kimidori are born.
Age 728
Sapa, King Chappa's first son is born.
Age 730
Mercenary Tao begins his career as a mercenary.
Taro Soramame is born.
Age 731
Granolah is born.
The Saiyans are annexed by the galactic overlord King Cold and start conquering planets to sell.
King Vegeta marries his queen.
Tsururin Tsun is born.
Age 732
Vegeta, Broly (DBS) and Launch are born.
The opening events of Dragon Ball Super: Broly take place.
King Cold visits Planet Vegeta to announce his retirement and that his son, Frieza, will take over command of the Saiyans.
Broly is sent to the inhospitable Vampa due to his abnormal power and potential danger. Paragus follows him to the planet via spaceship.
Age 733
Bulma, Yamcha and Tien Shinhan are born.
Age 733, May 8
Earth's current king, King Furry, is sworn in.
Between Age 733 and 737
Tarble is born.
Age 734
Goku is born.
The Saiyans invade Planet Cereal, wiping out all of the Cerealians except for Granolah who is saved by Bardock and the Namekian Monaito. Bardock overhears a conversation from the Heeters and as a result Gas is ordered to kill the lot of them but Bardock successfully manages to defeat him.
Age 735
Yajirobe is born.
Baby devises the "Universal Tsufruization Plan" in order to revive the Tuffles after the Saiyans wiped them out.
Frieza starts to feel misgivings toward the Saiyans.
Age 736
Krillin and Mr. Satan are born.
Age 737
Chi-Chi, Broly and Miguel are born.
Chi-Chi's mother dies from an illness.
The new strengthened Saibamen are developed.
The events of Dragon Ball Minus: The Departure of the Fated Child take place.
Bardock returns to Planet Vegeta on Frieza's orders and sends his son Kakarot to the distant planet Earth.
The Galactic King assigns Jaco to travel to Earth to try and prevent Goku from destroying it.
The events of Jaco the Galactic Patrolman take place.
Goku lands on Earth and is found by Grandpa Gohan.
The events of Dragon Ball Z: Bardock - The Father of Goku take place.
The opening events of Dragon Ball: Episode of Bardock take place.
One month after Goku is sent to Earth, Frieza destroys Planet Vegeta, killing most of the Saiyans including Bardock and Gine in the process.
According to multiple sources, Goku was born on this year. In Dragon Ball Minus: The Departure of the Fated Child and Dragon Ball Super: Broly, it is established that Goku was released from his nursing capsule on this year, having been inside for three years.
Age 738
Chiaotzu is born.
Age 739
A fire spirit sets Pleasant Mountain, the Ox-King and Chi-Chi's home, on fire. The mountain is renamed Mountain Fry-Pan.
The Oracle Fish predicts that Beerus will meet an "enemy of threat" in 39 years, forcing Beerus to go to sleep early.
Age 740
Oolong, Puar and Suno are born.
Krillin begins his training at the Orin Temple.
A parasitic organism with mind control abilities and the memory of the Tuffles, arrives on planet M-2. Dr. Myuu finds and is taken over by it. He uses the knowledge of advanced technology gained from the memories to begin plans to take over his world.
Age 744
Hoi claims to have started his search of Earth for Tapion.
Age 745
Senbei Norimaki creates Arale Norimaki.
Age 747
Yamcha meets Puar.
Age 748
The "immortal" phoenix that Roshi was raising dies of food poisoning. Turtle gets lost while gathering mushrooms.
Age 749
During the first ten days of April, Bulma enters Senior High School in West City.[4]Bulma discovers the 2-Star Dragon Ball in her basement. Omori, Jaco, Tights, and Katayude reunite on the former's island for a temporary reunion. Bulma discovers the 5-Star Dragon Ball in a cave to the north.