In The Art of Rhetoric, Aristotle defined rhetoric as "the faculty of observing in any given case the available means of persuasion." Aristotle was a Greek philosopher.

Rhetoric.

The study of rhetoric is commonly credited to ancient Greek scholars, particularly to the philosopher Aristotle. Aristotle's work, "Rhetoric," is a foundational text in the field.

While Aristotle did not invent the study of rhetoric, he is often credited with systematizing it into a comprehensive and influential approach in his work "Rhetoric." Aristotle's contribution to rhetoric lies in his analysis and classification of persuasive techniques, speech types, and the role of audience in communication.

aristotle in his treatise on the subject defined rhetoric