The new building of the Deutsche Nationalbibliothek in Frankfurt am Main opened in 1997.
Notes on verification
Confirmed by multiple independent sources including the institution's own official page, a regional archive, and independent media, all consistent on the 14 May 1997 opening date. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.525 clusters=2 claim_tier=everyday | kind=empirical eligibility=high]
Sources
- Nicht nur Bücher – Kunst am Bau und mehr 1 (seed:culture_and_philosophy)
- https://lagis.hessen.de/de/quellen-und-materialien/hessen-im-19-und-20-jahrhundert/alle-eintraege/2724 (corroboration)
- https://buchmarkt.de/2017/05/06/deutsche-nationalbibliothek-frankfurt-kunst-und-buecher/ (corroboration)