ar·ti·fact

– noun
1. any object made by human beings, esp. with a view to subsequent use.
2. a handmade object, as a tool, or the remains of one, as a shard of pottery, characteristic of an earlier time or cultural stage, esp. such an object found at an archaeological excavation.
3. any mass-produced, usually inexpensive object reflecting contemporary society or popular culture.
4. any feature that is not naturally present but is a product of an extrinsic agent, method, or the like.

doc·u·ment

– noun
1. a written or printed paper furnishing information or evidence, as a passport, deed, bill of sale, or bill of lading; a legal or official paper.
2. any written item, as a book, article, or letter, esp. of a factual or informative nature.
3. a computer data file.
4. evidence; proof.