Lexicon Technicum: Or, An Universal English Dictionary…
November 1704 CE
Lexicon Technicum: Or, An Universal English Dictionary of Arts and Sciences: Explaining not only the Terms of Art, but the Arts Themselves is in many respects the first alphabetical encyclopedia written in English.
Although the emphasis of the Lexicon Technicum is on mathematical subjects, its contents go beyond what would be called science or technology today, in conformity with the broad eighteenth-century understanding of the terms "arts" and "science," and it includes entries on the humanities and fine arts, notably on law, commerce, music, and heraldry.
In contrast, the Lexicon Technicum neglects theology, antiquity, biography, and poetry.
The Lexicon Technicum is the work of a London clergyman, John Harris.
Its professed advantage over French dictionaries of the arts and sciences is that it contains explanation not only of the terms used in the arts and sciences, but also of the arts and sciences themselves.
Harris in 1702 had issued a three-page proposal for this work, and in 1704 the first edition, in one folio volume, is published in London.