Ray Jackendoff's Foundations of Language. Brain, Meaning, Grammar, Evolution (2002)
Helmut Richter's Semantics and grammar: A relationship of mutual foundations? (1996)
Steven Pinker's The Language Instinct (1994)
Umberto Eco's The search for the perfect language (1993)
Humberto Maturana's Biology of language (1978)
X-bar theory (1977)
Julain Jaynes' The Origin of Consciousness in the Breakdown of the Bicameral Mind, Julian Jaynes (1976)
Peter Frederick Strawson's Subject and predicate in logic and grammar (1974)
Montague grammar (1973)
lexigrams (1971)
Noam Chomsky's Cartesian Linguistics: A Chapter in the History of Rationalist Thought (1966)
Chomsky's Aspects of the Theory of Syntax (1965)
Noam Chomsky's Review of B. F. Skinner's Verbal Behavior (1958)
B.F. Skinner's Verbal Behavior (1957)
Language, Thought, and Reality (1956) Benjamin Whorf
Chomsky hierarchy (1956)
Interlingua (1951)
the Sapir-Whorf hypothesis (1940s)
Lev Vygotsky's Thought and Language (1934)
J. R. Firth's Speech (1930)
Language: An introduction to the study of speech (1921) Edward Sapir
Ro (1904)
Charles Sanders Peirce's Kaina Stoicheia (1904)
George Boole's Investigation of the Laws of Thought (1854)
the Heterogeneity of Language and its Influence on the Intellectual Development of Mankind (1836) Wilhelm von Humboldt
Franz Bopp's Comparative Grammar of Sanskrit, Zend, Greek, Latin, Lithuanian, Gothic and German (1833-1852)
Wilhelm von Humboldt's Über die Entstehung der grammatischen Formen und ihren Einfluss auf die Ideenentwicklung (1822)
Wilhelm von Humboldt Über das vergleichende Sprachstudium (1820)
the second edition of the Critique of Pure Reason (1787)
the transcendental deduction (1781)
Gottfried Leibniz' lingua generalis (1678)
John Wilkins' Essay towards a Real Character and a Philosophical Language (1668)
the Port-Royal Logic (1662)
George Dalgarno's Ars signorum (1661)
Arnauld's Port Royal Grammar (1660)
Sir Thomas Urquhart's Logopandecteision (1652)
Francis Lodwick's The Groundwork or Foundation laid (or So Intended) for
the Framing of a New Perfect Language and a Universal Common Writing (1652)
Francis Lodwick's A Common Writing (1647)
Descartes' Mathesis Universalis (1619)
François Viète's logistica speciosa (late 16th century)
Ramon Llull's Ars magna (1305)
Bhartrihari (6th century bc)