# Authorities

- [Local subject headings](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/local-subject-headings.md)
- [Genres](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/local-subject-headings/genres.md)
- [Time periods](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/local-subject-headings/time-periods.md)
- [Local subjects](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/local-subject-headings/local-subjects.md)
- [Subject headings](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/subject-headings.md)
- [Library of Congress (LC)](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/subject-headings/library-of-congress-lc.md)
- [Medical subject headings (MeSH)](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/subject-headings/medical-subject-headings-mesh.md)
- [Homosaurus](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/subject-headings/homosaurus.md)
- [Undocumented, enslaved and indigenous people](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/subject-headings/undocumented-enslaved-and-indigenous-people.md)
- [Authority Maintenance](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/authority-maintenance.md)
- [Quarterly Backstage updates](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/authority-maintenance/quarterly-backstage-updates.md)
- [Authorities at Wellcome](https://docs.wellcomecollection.org/library-cataloguing/lQ0fMyP8xr8hWWJiQkfl/authorities/authority-maintenance/authorities-at-wellcome.md)
