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Histories of English words and their earlier forms
Shakespeare texts with scholarly and educational context
A multilingual encyclopedia with a language-aware search
Related English words for revising a draft
Concise biographies of figures in Welsh national life
A community-edited reference for recordings and releases
A collaboratively written mathematics encyclopedia
A subject-organized reference to Alabama
Regional history connected to Philadelphia's present
English definitions beside usage and collocation references
English dictionary lookup with explicit usage guidance
Discover peer-reviewed open-access books and publishers
Physical constants linked to units and uncertainty guidance
Spectral lines and atomic energy-level reference data
Official MLA guidance on writing and documentation
Quran reading and listening organized by surah and topic
Minnesota historical entries filterable by topic and era
Oklahoma history searchable by name, era and topic
Visual-art history through artists, movements and ideas
Manuscript images and metadata for medieval-music study
Population statistics organized through maps and tables
Articles, maps and timelines on Jewish history and culture
Health information and service references for Victoria