For the card strategy game, see Anachronism .
An anachronism (from the Greek "???," "against," and "??????," "time") is anything that is temporally incongruous?that is, it appears in a temporal context in which it seems sufficiently out of place as to be peculiar, incomprehensible or impossible. The item is often an object, but may be a verbal expression, a technology, a philosophical idea, a musical style, a material, a custom, or anything else closely enough bound to a particular period as to seem odd outside it.
Two types
An anachronist prefers older, often obsolete cultural artifacts over newer ones. For example, a modern-day anachronist might choose to wear a top-hat, use quill pens, or use a type-writer. This choice may reflect an eccentricity, aesthetic preference, or an ethical acceptance or rejection of the societal role of that artifact.Another sort of parachronism arises when a work based on a particular era's state of knowledge is read within the context of a later era
Source:
http://en.wikipedia.org/wiki/Anachronic