In Perpetuam Rei Memoriam Law and Legal Definition

In perpetuam rei memoriam signifies, for the perpetuation of the memory of the matter. In other words, it means, in everlasting remembrance of the event or for the perpetual memory or remembrance of a thing.

The following is an example of a case law referring to in perpetuam rei memoriam:

Any Circuit Court, upon application to it as a court of equity, may, according to the uses of chancery, direct depositions to be taken in perpetuam rei memoriam, if they relate to any matter that may be cognizable in any court of the United States. [Richter v. Union Trust Co., 115 U.S. 55, 56 (U.S. 1885)].