quality:corruption
History

The idea was first expressed explicitly by 19th-century thinkers such as Wilhelm von Humboldt and Johann Gottfried Herder, who considered language as the expression of the spirit of a nation. Members of the early 20th-century school of American anthropology including Franz Boas and Edward Sapir also approved versions of the idea to a certain extent, including in a 1928 meeting of the Linguistic Society of America, but Sapir, in particular, wrote more often against than in favor of anything like linguistic determinism. Sapir's student, Benjamin Lee Whorf, came to be considered as the primary proponent as a result of his published observations of how he perceived linguistic differences to have consequences for human cognition and behavior. Harry Hoijer, another of Sapir's students, introduced the term "Sapir–Whorf hypothesis", even though the two scholars never formally advanced any such hypothesis. A strong version of relativist theory was developed from the late 1920s by the German linguist Leo Weisgerber. Whorf's principle of linguistic relativity was reformulated as a testable hypothesis by Roger Brown and Eric Lenneberg who performed experiments designed to determine whether color perception varies between speakers of languages that classified colors differently.