NIST Atomic Spectra Database
nist.govSpectral lines and atomic energy-level reference data
Spectral lines and atomic energy-level reference data
Official MLA guidance on writing and documentation
A connected library of Jewish texts and commentaries
Quran reading and listening organized by surah and topic
Minnesota historical entries filterable by topic and era
Cleveland historical articles with a multimedia search
Australian scientific history connected to archival sources
Convention case-law knowledge by article and theme
Taxonomic lookup for living reptile species
Treaty records and depositary information
Visual-art history through artists, movements and ideas
Manuscript images and metadata for medieval-music study
Research explanations paired with charts and data explorers
Reports and data on human-development measures
Population statistics organized through maps and tables
Educational summaries on anesthesia and perioperative subjects
Radiology explanations organized around imaging topics
Articles, maps and timelines on Jewish history and culture
A wide subject reference to West Virginia
Health information and service references for Victoria
Build a wiki from linked pages, namespaces, and a dedicated open-source engine.
Public reference material on nutrition and related health conditions
Writing-tool retail with a dedicated buying-reference library