Songoku historyGoku was born on planet Vegeta and was sent to Earth to perform a mission spent his childhood with his grandfather, Gohan, who found him still alone in the woods.
Goku adventure begins when he meets Bulma who is looking for Dragon Ball that was found in the house Goku (Dragon Ball 4-star is the only remaining relics of Goku's grandfather). Along with the two of them journey to find Dragon Ball, gradually they met with various other figures, such as Master Roshi who later became the first teacher of Goku, Oolong, Yamcha, Puar, Chi-Chi, and others.
Kakarot is the nickname of Goku. This is the name given to the nation Saiya Goku. Every nation has always called Saiya Goku as Kakarot, as practiced by Raditz, Nappa, Vegeta, Broly and Turles.
Goku is sent to planet earth as a baby in the beginning of the planet is to destroy Bezita all life on earth, given the Son Goku, whose real name is Kakarot and lower class warrior who has the combat power at below-average baby Saiya other, then the Son Goku in sent to destroy life on the planet in which there is hardly anyone who has high firepower. Son Goku is expected to destroy life on Earth in just a matter of months, because when the full moon arrives Saiya nation can show the real power they have.
But when it arrives on Earth with the spacecraft for the first time, Son Goku is found by a grandfather who had no family, named Son Gohan. At first, Son Goku is a very naughty boy unruly and often violent until one day an accident, that Son Goku falls into this pit that resulted in injuries on his head and made Son Goku will not forget its main purpose on Earth.