Over 100 million years B.C. Earliest Kaiou Samma is thought exist.

About 75 Million years B.C. The 15th generation Kaioushin, Rou Kaioushin, is sealed in the Z Sword.

About 5 Million years B.C. The evil magician Bibidi is successful in creating Buu. Buu destroys hundreds of planets in the following years. Four of the five Kaioushins are killed by Buu. Dai Kaiou is absorbed by him, giving him a fat appearance. West Kaioushin manages to kill Bibidi and leaves Buu's sphere shell on Earth.

Tens of thousands of years B.C. Annin begins her service of protecting the Furnace of Eight Divinations on the border between the real world and the "Other World".

4237 B.C. Garlic Junior's ancestors migrate to the Earth from their home, Makyo-sei.

739 B.C. Jadoushin becomes the Princess of Snake Road, and settles in her castle along-side of it.

Approximately 238 B.C. The Legendary Super Saiyan appears and wreaks havoc across the Universe.

Approximately 250 A.D. Uranai Baba begins her fortune telling buissnes.

261 A.D. Enma Daiou travels the Snake Path to get training from Kaiou Samma. Princess Snake meets him and falls in love. On Namek, violent storms ravage the planet and destroy many of the life giving Ajisa plants. Kattatsu sends his son away on a space ship to avoid death. But the storms stop and no one follows the child. The child faces problems and is forced to make a landing on the planet Earth. The young Nameckian's name is....Piccolo.

430 A.D. Master Roshi is born. Here comes trouble, ladies.

431 A.D. Piccolo becomes the apprentice of Kami.

448 A.D. Master Roshi turns 18 and continues training under Mutaito. He falls in love with Ran-Ran, (A distant ancestor of Ran-Fan perhaps? They both look alike.)

459 A.D. Tsurusennin's brother, Tao Pai Pai, is born.

461 A.D. Garlic assaults Kami for not choosing him as his successor. He is defeated and trapped by Kami. Piccolo is the chosen one and ascends to the throne of Kami. The evil in Kami's heart leaves him and forms Piccolo Daimaou. Daimaou leads a reign of terror across the Earth, but is sealed in the Denshi Jar by Mutaito's Mafuba technique. Mutaito dies as a result of performing the move.

474 A.D. Darbura inspects the Earth.

Approximately 550 A.D. The first Saiyan land on the planet Plant in a mysterious ship.

553 A.D. Master Roshi starts his world famous collection of dirty magazines.

Approximately 650 A.D. Master Roshi finds the 3-Star Dragon Ball washed up on his beach.

650 A.D. May 7th The first Tenkaichi Budoukai takes place.

658 A.D. Old Gohan is born.

662 A.D. Kami tells Mr. Popo what he remembers about his childhood.

698 A.D. Toninjinka is born.

715 A.D. The great Emperor Pilaf is born.

720-730 A.D. The Saiyan unite and begin a war against the Tsufuru-jin for control of the planet Plant. The Tsufuru scientist Dr. Raichi is killed. The Tsufuru-jin are completely destroyed by the Saiyans. The Saiyans take control of the planet and re-name it Vegeta. They adapt Tsufuru technology. The Saiyans begin space travel and meet aliens from other planets.

722 A.D. General Blue from the Red Ribbon Army is born.

730 A.D. Tao Pai Pai starts his career as an assassin.

731 A.D. The Saiyans begin their partnership with Freiza and start conquering planets for sale. King Vegeta marries his queen.

732 A.D. The birth of Prince Vegeta.

733 A.D. Bulma, Yamucha, and Tien are born.

733, A.D. May 8th Earth's current king is sworn in.

Approximately 735 A.D. Frieza starts to feel misgivings toward the Saiyans. It begins a period of controlled chaos.

736 A.D. Krillin is born

737 A.D. A Low Class Saiyan fighter is born to the Middle Class fighter Bardock. He is rejected by his father as a failure. In his first few days alive he's sent to the planet Earth to destroy it when he grows older. His name is Kakkarott. Planet Vegeta gains control of the planets Meat and Kanassa. King Vegeta's revolt against Frieza ends in failure with his death. Frieza demands the death of all Saiyans. Bardock dies trying to protect planet Vegeta and his future. Kakkarott lands on Earth. The Ox Kings daughter, Chi-chi is born. His wife dies shortly after the birth. Sometime in between June and August Gohan finds a small baby in the woods. He names him Goku.

738 A.D. Goku hits his head on a rock after falling down a cliff. He stops being a wreckless evil child and becomes a happy loving boy.

739 A.D. Ox King and his daughter go to the foot of the mountain, Mount Ryokei. A fire spirit is unleashed and sets Mount Ryokei afire. Ox King and his daughter are trapped at the bottom of the mountain. The mountain is renamed Mount Frypan.

740 A.D. Oolong is born. Krillin begins his training at the Orinji Temple. Bebi creates Dr. Myu for the purpose of gathering energy so he can be reborn. Myu is programmed to make Ruudo and all of the other Machine Mutants.

747 A.D. Yamucha meets Puuaru.

748 A.D. The Pheonix Master Roshi was raising dies of food poisoning. Later, while gathering mushrooms, he discovers a baby sea turtle who got lost.

749 A.D. First ten days of April, Bulma enters Senior High School in the Western City.

Sometime in 749 A.D. Bulma discovers the 2-Star Dragon Ball in her basement.

749 A.D. 22 August Bulma discovers the 5-Star Dragon Ball in a cave to the north.