Foundations of geometry possible exception of the parallel postulate) that any theorem proved from them was deemed true in an absolute, often metaphysical, sense. Today, however, many other geometries which are not Euclidean are known, the first ones having been discovered in the early 19th century. Euclid's "Elements" is a mathematical and geometric treatise consisting of 13 books written by the ancient Greek mathematician Euclid in Alexandria c. 300 BC. It is a collection of definitions, postulates (axioms), propositions (theorems and constructions), and mathematical proofs of the propositions. The thirteen books cover Euclidean geometry and the ancient Greek version of elementary number theory.
During the Reign of the Queen of Persia teens, the second regresses back to their childhood, and the third see the sale of the family farm and the dispersal of the family. The book drew comparisons to the works of Anne Tyler, Marilynne Robinson, Douglas Unger and Susan Engberg. During the Reign of the Queen of Persia During the Reign of the Queen of Persia is the first novel by American author Joan Chase. On its publication in 1983 it won the Hemingway Foundation/PEN Award. The story is told from the perspective of the four granddaughters of the "Queen of Persia", an Ohio farmwife, during the 1950s. The