D・H・ヒル
In February 1849, Daniel Harvey Hill resigned his commission and became a professor of mathematics at Washington College (now Washington and Lee University), in Lexington, Virginia. While living in Lexington, he wrote a college textbook for the Southern United States market, "Elements of Algebra", which "with quiet, sardonic humor, points a finger of ridicule or scorn at any and everything Northern." While not all of the textbook's questions were "anti-Yankee", many were, such as: