Dear colleagues, Please join us on *Tues. 26 October at 1PM Eastern* (Time zone converter <https://www.timeanddate.com/worldclock/converter.html?iso=20211026T170000&p1=179&p2=tz_ct&p3=tz_mt&p4=tz_pt&p5=tz_bst&p6=tz_cest>) for the *LD4 Wikibase Working Hour*. This session will kick off a *multi-month interactive project*: developing a *sandbox WBStack instance for alternative labels for Library of Congress Subject Headings (LCSH)*. The goal is not to create a lasting repository of alternative labels for LCSH, but simply to explore how Wikibase or WBStack might be a useful tool for institutions using alternate labels for LCSH headings, or simply for tracking the usage of such labels by different institutions. For the October session, we will focus on data modeling for the sandbox WBStack instance. The session will include breakout activities and group discussion. More details will be included in the confirmation email. Registration link <https://columbiauniversity.zoom.us/meeting/register/tJ0vd-ytrTsvGtSYgp3_Ti_XJ8XZ3AZeZGwQ> . -- Timothy Ryan Mendenhall (he/him/his) Metadata Librarian Columbia University Libraries Original and Special Materials Cataloging 102 Butler Library 535 West 114th Street New York, NY 10027 [log in to unmask] (212) 851-2452