Iconoclasm is the practice of estroying/ridiculing cultural icons or institutions or not being allowed to depict an icon within a culture of the culture's own religious icons and other symbols or monuments, usually for religious or political motives. It is a frequent component of major domestic political or religious changes. It is thus generally distinguished from the destruction by one culture of the images of another, for example by the Spanish in their American conquests. The term does not generally encompass the specific destruction of images of a ruler after his death or overthrow (damnatio memoriae), for example Akhenaten in Ancient Egypt.