Summarize the development of linguistics in the 18th and 19th centuries, focusing on key concepts and figures.

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• The 18th Century saw the establishment of Comparative and Historical Linguistics. This period was marked by the emergence of printed texts like grammars and dictionaries, which expanded the study of linguistics into a universal grammar. This universality was attributed to the idea that uniform rules were present in the minds of all grammar scholars, leading to widespread linguistic study.
• The 19th Century (also referred to as the period of Comparative Linguistics) saw the implementation of Historical Linguistics. This focused on the historical changes that languages underwent over time. A key event was in 1786, when William Jones, an English linguist and judge in Calcutta, revealed the existence of a genetic relationship among all languages.