The Superior Spider-Man storyline began in 2013. Marvel launched the first issue of The Superior Spider-Man in January 2013, following the conclusion of The Amazing Spider-Man and the 2012 storyline Dying Wish.
Dying Wish ended with Peter Parker’s mind apparently dying inside his own body while Doctor Octopus transferred his consciousness into it. Otto Octavius then decided to become what he called the “Superior Spider-Man,” combining Peter’s powers with Otto’s ruthless methods and scientific intelligence.
The premise created one of Marvel’s most unusual Spider-Man status quos: the body was Peter’s, but the mind in control was Otto’s, while traces of Peter’s consciousness continued to resist him. Readers sometimes answer 2012 because Dying Wish began that year, or 2014 because the first run ended then. The Superior Spider-Man series itself began in 2013.