Flatland: A Romance of Many Dimensions is an 1884 satirical novella by Edwin A. Abbott. The story is about a two-dimensional world referred to as Flatland which is occupied by geometric figures. Women are simple line-segments, while men are polygons with various numbers of sides. The narrator is a humble square, a member of the social caste of gentlemen and professionals in a society of geometric figures, who guides the readers through some of the implications of life in two dimensions. The Square has a dream about a visit to a one-dimensional world (Lineland) which is inhabited by lustrous points. He attempts to convince the realms ignorant monarch of a second dimension but finds that it is essentially impossible to make him see outside of his eternally straight line.
