Media relating to subjects that were cancelled after substantial activity (i.e. physical work such as prototypes, or services rendered) was undertaken. If a subject never got beyond the "desktop" planning stage, it would be more appropriate in Category:Proposed or planned subjects.
This category has the following 5 subcategories, out of 5 total.
Media in category "Cancelled subjects"
This category contains only the following file.
- Touhoku-Tsunami Shock...