* The name is slightly off: There might be a slightly different name for the publication (e.g., a different spelling, or it might be a yearbook, newspaper, or literary magazine).
* It's a very local publication: It might be a publication only distributed within Marietta High School and not indexed online.
* It doesn't exist: The publication may not exist.
To find the publication date, you'd need to provide more information, such as:
* The full and correct name of the publication.
* The location of Marietta High School (there are many).
* Any other details you know about the publication (e.g., type of publication, year of a specific issue you remember).
With more details, a more precise answer might be possible.