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14 flagships · 25 briefs staged (weekly from Oct 13) · 9 dossiers · 25 guides · 2,822 entities — record updated October 6, 2026

National Academy of Sciences

CTL-E-4556 · Organization · professional · 1863-present

VERIFIED evidence grade of this record

Honorific scientific society; Percy Julian was elected in 1973 as the first African American chemist inducted, and the second African American scientist (after David Blackwell) from any field.

The record

Notes

RELP105 supporting entity: edge endpoint for CTL-E-1084 member_of_organization. Identity-checked against canonical entities.json 2026-10-06: no collision.

Referenced by

Sources

Record CTL-E-4556 · CultureTechLens Knowledge Graph · evidence grade: VERIFIED · 1 source (1 primary) · 1 mapped relationship · CTL research: RELP-001.
Directory: all entity records · the knowledge graph

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Cite as: CultureTechLens, “National Academy of Sciences (CTL-E-4556),” CultureTechLens Knowledge Graph, October 2026. https://culturetechlens.com/graph/entities/ctl-e-4556/

Chicago: CultureTechLens. “National Academy of Sciences (CTL-E-4556).” CultureTechLens Knowledge Graph. Chicago, IL: CultureTechLens, 2026. https://culturetechlens.com/graph/entities/ctl-e-4556/
APA: CultureTechLens. (2026). National Academy of Sciences (CTL-E-4556) [Entity record]. CultureTechLens Knowledge Graph. https://culturetechlens.com/graph/entities/ctl-e-4556/
MLA: CultureTechLens. “National Academy of Sciences (CTL-E-4556).” CultureTechLens Knowledge Graph, 2026, https://culturetechlens.com/graph/entities/ctl-e-4556/

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From the Archive

The archive in pictures

The people, places, and institutions this work documents. Photographs from the CultureTechLens research record — rights-cleared, credited, and cited like everything else here.

Apartment houses and funeral parlor in Negro section of Chicago, Illinois, Chicago, 1941
Apartment houses and funeral parlor in Negro section of Chicago, Illinois, Chicago, 1941Photo: Lee, Russell, 1903-1986, FSA-OWI, Public Domain, via Library of Congress
Apartment houses and funeral parlor in Negro section of Chicago, Illinois, Chicago, 1941
Apartment houses and funeral parlor in Negro section of Chicago, Illinois, Chicago, 1941Photo: Lee, Russell, 1903-1986, FSA-OWI, Public Domain, via Library of Congress
Crowd outside of fashionable Negro church after Easter Sunday service, Black Belt, Chicago, Illinois, Chicago, 1941
Crowd outside of fashionable Negro church after Easter Sunday service, Black Belt, Chicago, Illinois, Chicago, 1941Photo: Rosskam, Edwin, 1903-1985, FSA-OWI, Public Domain, via Library of Congress

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