abstract:A parachronism (from the Greek "παρά," "on the side," and "χρόνος," "time") is anything that appears in a temporal context (time period) in which, though not sufficiently out of place as to be impossible, it is not normally found. The item is often an object, but may be an idiomatic expression, a technology, a philosophical idea, a musical style, a material, a custom, or anything else sufficiently closely bound to a particular period as to seem strange when encountered in a later era.