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Search legislation and congressional records
Histories of English words and their earlier forms
Find market datasets for spreadsheets and financial applications
Controlled terminology for art and cultural-heritage research
Shakespeare texts with scholarly and educational context
A multilingual encyclopedia with a language-aware search
Related English words for revising a draft
A versioned taxonomic catalogue of spiders
A historical London map linked to texts and reference records
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
A global bird classification with English naming guidelines
Discover peer-reviewed open-access books and publishers
Astronomical objects connected to literature and identifiers
Physical constants linked to units and uncertainty guidance
Official MLA guidance on writing and documentation
A connected library of Jewish texts and commentaries
Quran reading and listening organized by surah and topic