How has Bucky Barnes evolved throughout different comic book storylines and eras?

Bucky's character has undergone significant evolution over the decades. Initially a sidekick, he transitioned into a more independent and complex character. The Winter Soldier storyline drastically altered his trajectory, transforming him into a weapon. Later, his rehabilitation and pursuit of a normal life have been recurring themes, illustrating his growth and resilience. His depiction has changed from a primarily combat-focused character to one with deeper emotional complexities.