Reading and (Re-)​Classifying Canonical Instructions of the Past: Commentaries on ‘The Nine Chapters on Mathematical Procedures’ from the 3rd to the 13th Centuries

The earliest extant Chinese mathematical writings include two types of components of particular interest for our discussion on manuals and handbooks. On the one hand, there are mathematical problems that often evoke tasks carried out by officials working in the imperial bureaucracy. On the other hand, there are mathematical “procedures,” or “algorithms” in today’s parlance, to solve such problems. This description fits most of the mathematical books composed in China until the seventh century. Continue reading “Reading and (Re-)​Classifying Canonical Instructions of the Past: Commentaries on ‘The Nine Chapters on Mathematical Procedures’ from the 3rd to the 13th Centuries”

Economic Personae: The Making of Financial Identity in America

woman in credit bureau with credit files representing an assortment of businessmen

In 1936, actor Ian Keith petitioned a Los Angeles court to change his legal name. Born in Boston as Ian Macaulay Ross in 1899, Keith had honed his skills on Broadway stages before transitioning to the silver screen. By the mid-1930s, he was a familiar face in dozens of Hollywood films. He played the assassin John Wilkes Booth in Abraham Lincoln (1930), D. W. Griffith’s first “talkie,” and appeared in several Cecil B. DeMille epics, including The Sign of the Cross (1932) and Cleopatra (1934). Audiences knew him as Ian Keith, the stage name he had settled on in the early 1920s. Keith’s petition sought to make this public identity official. Continue reading “Economic Personae: The Making of Financial Identity in America”