Theon of Alexandria Theon of Alexandria Theon of Alexandria (; ; 335 – c. 405) was a Greek scholar and mathematician who lived in Alexandria, Egypt. He edited and arranged Euclid's "Elements" and wrote commentaries on works by Euclid and Ptolemy. His daughter Hypatia also won fame as a mathematician. Little is known about the life of Theon. He made predictions and observances of solar and lunar eclipses in 364 which show he was active at that time, and he is said to have lived during the reign of Theodosius I (379–395). The biographical tradition of the tenth century Byzantine "Suda" defines Theon
In the Reign of Terror: The Adventures of a Westminster Boy In the Reign of Terror: The Adventures of a Westminster Boy In the Reign of Terror: The Adventures of a Westminster Boy is a novel by G. A. Henty published in 1888. The novel follows the adventures of Harry Sandwith, an English boy sent to live with the Marquis de St. Caux during the height of the French Revolution. Harry Sandwith, a sixteen-year-old English boy, is sent to live in France with the Marquis de St. Caux, a friend of a French nobleman Harry's father once served. The marquis is impressed with the English system of schooling and believes that