It was between the year 2000 and 2020 when you died. You've been dead for hundreds of years until Android 21 somehow harvested your mind and put it into an android body she made for you. She has also infused your new body with the DNA of several different heroes and villains including Goku, Piccolo, Frieza, and many more. This means that you have the ability to use their special abilities. You even have Android 21's abilities as well!