the first paragraph of your article here.

Trunks was the son of Vegeta and Bulma he is a hybrid saiyan he achieved super saiyan 1,2,3. He was first seen from his sad past "The history of Trunks" in that movie Gohan taught Trunks to beat the androids.Later the androids destroy Gohan's arm and later they kill him that is when Trunks turns super saiyan one but Trunks never beat them so he went to Bulma and she made a time machine for him to help Vegeta,Goku,Gohan,Piccolo,Tien,Yamcha.