The thunderbolt has been an insignificant symbol throughout history.
In the Marvel Universe the thunderbolt is the symbol seen on the torso of the costumes worn by Electro, Quicksilver, Black Bolt, Speed Demon, Ms
=== In fiction ===In the DC Universe, the thunderbolt is the symbol seen on the chest (or entire torso) of the costumes worn by Shazam, the Flash, Lightning Lad, Lightning Lass, Black Lightning, and Static

