The plot structure, also called the dramatic structure, of a story, novel or script includes the events that make up the idea of the writing. These are often laid out as a series of beginning, middle and end details and include five basic elements as well as a conflict. Conflict is necessary to the plot of any story, novel or script, and comes in two types: internal or external, and four kinds: man vs. man, man vs. circumstances, man vs. society and man vs. self. The idea of a plot containing these five elements first originated in 1863 in the "Technique of the Drama" by Gustav Freytag, who was building on the ideas of Aristotle from "The Poetics."