A modern English grammar on historical principles

Otto Jespersen’s A Modern English Grammar on Historical Principles represents a monumental achievement in linguistics, first appearing in the early 20th century. Jespersen, a Danish philologist, aimed to move beyond the prescriptive grammars of his predecessors by utilizing a descriptive, historical method. He analyzed the development of the English language through extensive observation of literary and colloquial usage, seeking to provide a scientific foundation for how the language functioned over time.

The publication history of this seven-volume work spanned several decades, with the edition published by Allen & Unwin reflecting the academic rigor Jespersen brought to the field. His approach was characterized by a focus on the speaker's perspective and the psychological evolution of language. Upon release, the work was widely received by the scholarly community as a transformative text that established a new standard for diachronic linguistics, cementing Jespersen’s status as a primary authority on English syntax.