When গোকু was just a baby, he was sent from his প্রথমপাতা planet, Planet Vegeta, where a race of people called Saiyans. গোকু was sent to Earth on a mission to kill all life, so the planet can be sold.

[+]When গোকু got there he was found দ্বারা an old man named Gohan. Gohan would try to keep গোকু under control, but he kept getting away. Then, one time গোকু fell of a cliff and hit his head. This made him lose his memory, and then গোকু was like a normal child, exept, for his tail. All Saiyans have tails but, nobody on Earth knew that.

[+]Gohan was a master of the marshil arts, and he taught গোকু everything...