The Isosceles

The Stranger

The Isosceles and Stranger have a negligible relationship, likely a brief encounter.

The Circles

The Circles oversee the Isosceles in a rigid social hierarchy, with little personal interaction.

The Stranger

The Isosceles and Stranger have a negligible relationship, likely a brief encounter.

Preface to the Second and Revised Edition, 1884

The Isosceles are referenced as the lower classes, whose destinies have been neglected by historians, and toward whom the Square has modified his views.

Flatland

The lowest class of soldiers and workmen, with sharp angles and limited intelligence.

Part I: This World

Described as the lowest class, with limited rights and used as soldiers or laborers.

III: Concerning the Inhabitants of Flatland

The lowest class of Triangles with two equal sides and a very short base, often nearly indistinguishable from Straight Lines; they are soldiers and workmen, and their offspring remain Isosceles unless exceptional circumstances occur.

Concerning the Women

Mentioned as the lower strata where lack of tact leads to domestic disasters; their wives are said to imitate the back-motion of higher classes, and their families are subject to elimination through female outbreaks.

V: Of Our Methods of Recognizing One Another

The Isosceles are discussed as the lowest class, with dangerous angles and a system of gradual angle increase across generations.

VI: Of Recognition by Sight

Mentioned as the lower classes (common tradesmen and serfs) who cannot afford Sight Recognition training and rely on Feeling.

VII: Concerning Irregular Figures

Mentioned as soldiers and artisans whose sides must be equal; also as potential Irregulars causing danger in crowds.

Of the Ancient Practice of Painting

The Isosceles soldiers are described in military reviews, displaying vibrant colors during the Colour Revolt.

IX: Of the Universal Colour Bill

The Isosceles classes are portrayed as increasingly insolent and revolutionary, demanding equality and the abolition of aristocratic arts.

X: Of the Suppression of the Chromatic Sedition

The Isosceles are the main agitators for the Colour Bill; they are ultimately massacred by one another's angles after being leaderless and attacked by invisible women and convicts.

XII: Of the Doctrine of Our Priests

Isosceles figures are cited as examples of those whose irregular sides lead to criminal behavior, and who must be sent to hospital or executed.

XIII: How I Had a Vision of Lineland

Not directly present; the Lineland King refers to his subjects, including small Lines (men) and Points (women), but no specific Isosceles character appears.

XIV: How I Vainly Tried to Explain the Nature of Flatland

Referenced indirectly when the Square compares the war-cry of Lineland's subjects to 'the roar of an army of a hundred thousand Isosceles'.

XV: Concerning a Stranger from Spaceland

Not directly present, but the wife's proverbs ('Feeling is believing') reflect the lower-class reliance on touch over sight.

How I Came to Spaceland, and What I Saw There

Six low-type Isosceles soldiers rush upon the Sphere at the Council's command.

Endnotes

Discussed in the context of marriage and certification for Triangles.