Powerviolence is a chaotic and fast subgenre of hardcore punk which is closely related to thrashcore and grindcore. In contrast with grindcore, which is a "crossover" idiom containing musical aspects
Powerviolence pioneers Siege performing at their high school in 1984
Iconoclasm is the belief in the importance of the destruction of icons and other images or monuments, often for religious or political reasons. Those who engage in or support iconoclasm are called ico
Powerviolence
…an augmentation of the most challenging qualities of hardcore punk and grindcore. Like its predecessors, it is usually socio-politically charged and iconoclastic. While powerviolence is closely related to thrashcore (often referred to simply as "thrash"), it is markedly different from thrash metal in both sound…
16th-century iconoclasm in the Protestant Reformation. Relief statues in St. Stevenskerk in Nijmegen, Netherlands, were attacked and defaced by Calvinists in the Beeldenstorm.
Defaced relief of Horus and Isis in the Temple of Edfu, Egypt. Local Christians engaged in campaigns of proselytism and iconoclasm.
Saint Benedict's monks destroy an image of Apollo, worshiped in the Roman Empire.
Byzantine Iconoclasm, Chludov Psalter, 9th century