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A treatise is a formal and systematic written discourse on some subject, generally longer and treating it in greater depth than an essay, and more concerned with investigating or exposing the principles of the subject.
The origin of the genre traces its roots to written instructions. The first written instructions that were worthy of preserving would be wisdom literature. Earliest examples come from Ancient Egypt such as The Maxims of Ptahhotep (~2300 BC), the Instructions of Kagemni (~1900 BC), Loyalist Teaching (~1800 BC) and the Instructions of Amenemhat (~1500 BC). When written instructions captured abstract topics like politics, which could only be reliably preserved through documentation, the treatise was born.
The origin of the treatise label occurs around the time that the manuscript culture shifted from monasteries to the market in the cities, which was in the 13th century. Some of the most common genres of manuscripts of the time were bibles and religious commentaries as well as philosophy, law and government texts. The manuscripts that had a systematic discourse were labeled as a trestis, which later became treatise during the late Middle English period. Due to the meaning of treatise being deeper than the definition itself, some works that were particularly significant (or promoted to be significant) in its genre were given the treatise label, inappropriately. For example, when comparing the Vivekacma?i and the Tao Te Ching, both philosophical works, the treatise distinction becomes clear. The Vivekacma?i has a clear systematic discourse with a beginning, middle and end while the Tao Te Ching is fluidly organized.
As the meaning of the word treatise is more inferential than the definition alone, the meaning needs further clarification.
By definition, the key features of a treatise are as follows:
In addition to the features above, to qualify as a treatise, the work has to be revolutionary and create a sustained momentum. The revolutionary feature is important as it positions the work as being notable. The sustained momentum feature is important as without it, the work is unsuccessful in exposing the principles of the subject.
Treatises typically don't follow the long tail distribution of popularity like many other written works. They tend to follow the diffusion of innovations theory though on long time scales. This distribution of popularity with time also applies to wisdom literature and possibly other written genres.
Works presented here continue to be insightful for modern day interests. Such works are often available at libraries and bookstores (possibly specialty bookstores).
|The Art of War||Sun Tzu||~500BC||War|
|Treatise on Harmony||Jean-Philippe Rameau||1722||Music|
|Treatise on Instrumentation||Hector Berlioz||1844||Music|
The works presented here have been identified as influential by scholars and have since become replaced by modern works.
|De re aedificatoria||Leon Battista Alberti||1400s||Architecture||Reference|
|The Prince||Niccolò Machiavelli||1500s||Politics||Reference|
|Discourse on the Method||René Descartes||1600s||Philosophy||Reference|
|Two Treatises of Government||John Locke||1660||Government||Reference|