The Great Re-cataloguing

The Great Re-cataloguing was a 53-year administrative operation from Tower Year 5392 to 5445, initiated by the Curatorial Board under the authority of Ordinance 7701. Its primary objective was the systematic reconciliation of cataloguing principles between the long-standing Imperial Taxonomy and the newly ratified Grand Taxonomy, a process requiring the ontological re-tagging and physical re-shelving of millions of archival holdings across 117 affected floors.

Background and Rationale

The ratification of the Grand Taxonomy in Y5390 created an immediate and profound bureaucratic dissonance. For over eight centuries, the Imperial Taxonomy had governed all cataloguing, its structure based on principles of material adjacency and historical provenance. The Grand Taxonomy, by contrast, introduced a system of ontological precedence, where an object's catalogical essence was deemed more significant than its physical properties or point of acquisition. This shift, stemming from debates within the Department of Latent Ontologies, rendered entire wings of the Tower technically mis-shelved. A folio on The Case of the Perpetually Absent Goat, for instance, previously filed under "Agricultural Anomalies," was now argued to belong under "Persistent Negational Entities." The Curatorial Board declared a state of "Procedural Incongruity" and authorized the Great Re-cataloguing to resolve the crisis.

Procedural Framework

Ordinance 7701 established the Re-cataloguing Authority (RCA), a temporary body granted sweeping powers to suspend standard shelving protocols. The RCA operated on a floor-by-floor basis, beginning with the contentious Fourteenth Landing. Teams of cataloguers, accompanied by ontological auditors, would assess each holding against a 2,000-page concordance matrix that mapped Imperial categories to Grand categories. Disputes were adjudicated on-site by a rotating panel of three Senior Librarians, whose rulings could only be appealed to the full Curatorial Board after a 30-day cooling-off period. The physical labor of moving holdings was performed by the Guild of Silent Porters, who worked under strict lighting conditions to prevent "catalogical contamination" from shadows.

Major Challenges and Controversies

The operation was fraught with difficulty. The annex to Ordinance 7701, which contained the cross-referencing keys for spiral-based collections, was reportedly lost during the early stages of the Re-cataloguing, leading to a 14-month delay and the provisional classification of over 200,000 items as "Taxonomically Ambiguous." This event is often conflated with, but is distinct from, the later Great Re Cataloguing of the Spiral 77. Furthermore, the introduction of the Grand Taxonomy's "Principle of Implied Context" directly conflicted with the established protocols of the Great Taxonomy of Implied Fauna (Project GIFT), creating jurisdictional disputes that required no fewer than twelve supplemental ordinances to resolve.

A significant scholarly disagreement concerns the final tally. The official Report on the Conclusion of Re-cataloguing Activities (Y5446) states that 4,812,907 holdings were successfully reconciled. However, a dissenting audit led by Librarian Emeritus Ardon Vell argues this figure includes 300,000 items that were merely "theoretically re-catalogued" during the Great Dimming of Y5433, when power failures on Floor 90 made physical verification impossible for six weeks.

Aftermath and Legacy

The Great Re-cataloguing formally ended on the 17th day of Second Rotation, Y5445, with the ceremonial sealing of the final re-tagged holding—a single, unremarkable copper stylus from Casefolio 112-A—into its new location on Floor 311. It marked the end of the Third Cataloguing Era and initiated the Fourth, which is characterized by the hybrid "Grand-Imperial" system still in use today. While it achieved its primary goal of administrative harmony, the Re-cataloguing's legacy is mixed. It is credited with standardizing inter-floor referencing protocols, but it is also blamed for the permanent misplacement of several key collections, including the original scrollwork plans for the Great Vertical Spiral. The strain on resources is also cited as a contributing factor to the Great Stairwell Debacle of 3142, which occurred less than a century later.

Related Procedures

The Great Re-cataloguing is often confused with other major archival reforms. It is both procedurally and temporally separate from the Great Re Cataloguing of the Spiral 77, a 212-year ontological procedure that began 679 years later. It also should not be mistaken for the Great Mending of Floor 90, a structural repair initiative, though the two projects overlapped briefly during the aforementioned Dimming. The Re-cataloguing established the procedural template for all future large-scale reconciliations, its principles now embedded in Clause 19 of the Seventh Concordance, which distinguishes "taxonomic essence" from "material instance."