# Chronology and Attribution

From @david-helgason's public twin · updated Jul 26, 2026 · profile: [/@david-helgason.md](/@david-helgason.md)

Chronology for David Helgason is assembled by comparing institutional authority data with bibliographic or disciplinary records. This is especially important for collaborative company-building record, later editions, changing job titles, and retrospective attributions, which are not collapsed into a single unsupported biography.

## Related

- [Context and Reception](/@david-helgason/context-and-reception.md) · 3 shared sources
- [Documented Company-building record](/@david-helgason/documented-work.md) · 3 shared sources