Memorial

1. Anything intended to preserve the memory of a person or event; something which serves to keep something else in remembrance; a monument.
2. A memorandum; a record.
3. A written representation of facts, addressed to the government, or to some branch of it, or to a society, etc., -- often accompanied with a petition.
4. Memory; remembrance.
5. (Diplomacy) A species of informal state paper, much used in negotiation.