Topic A topic was once a spot not a subjecttopic. to ̆p’ı ̆k. n. 1. The subject of a speech, essay, thesis, or discourse. 2. A subject of discussion or con-versation. 3. A subdivision of a theme, thesis, or outline.*With no teleprompter, index cards, or even sheets of paper at their disposal, ancient Greek and Roman orators often had to rely on their memories for holding a great deal of information. Given the limi-tations of memory, the points they chose to make had to be clustered in some meaningful way. A popular and quite reliable method for remembering information was known as loci (see Chapter 9), where loci was Latin for “place.” It involved picking a house you knew well, imagining it in your mind’s eye, and then associating the facts you wanted to recall with specifi c places inside of that house. Using this method, a skillful orator could mentally fi ll up numerous houses with the ideas he needed to recall and then simply “visit” them whenever he spoke about a particular subject. The clusters of informa-tion that speakers used routinely came to be known as commonplaces, loci communes in Latin and koinos topos in Greek. The great Greek philosopher Aristotle referred to them simply as topos, meaning “places.” And that’s how we came to use topic to refer to subject or grouping of information.**