This article is devoted to the history of stylometry and its development at an early stage. Stylometry is an applied philological discipline that considers style as a set of quantitative parameters. Stylometry arose on the material of classical studies. Using the example of the most reliable and authoritative stylometric method to date — Burrows’ Delta — the advantages and disadvantages of this type of analysis are examined. The genesis of the term “stylometry” is established. In the seminal book of G. Martynenko “Fundamentals of Stylometry” it is indicated that it was coined by the German classical philologist W. Dittenberger. The study reveals that the term “stylometry” actually existed in the 19th century in the meaning of ‘the art of measuring columns’, and it is not used in Dittenberger’s works. This term was introduced by W. Lutoslawski, who tried to solve the problem of periodisation of Plato’s dialogues. It turns out that “stylometry” was first used in a new meaning on May 21, 1897, during a report by W. Lutoslawski at the Oxford Philological Society. In Russia, the term first appears in a review in 1898 in the form стилометрия, and in Morozov’s 1915 article in the form стилеметрия, which became widespread in the Soviet academic community