Kenyon Cox (October 27, 1856 – March 17, 1919) was an American painter, illustrator, muralist, writer, and teacher. Cox was an influential and important early instructor at the Art Students League of New York. He was the designer of the League's logo, whose motto is Nulla Dies Sine Linea or No Day Without a Line.
Kenyon Cox began to focus more on mural painting after the 1893 World's Columbian Exposition in Chicago. Cox painted murals in the state capitol buildings of Des Moines, St. Paul and Madison as well as other courthouses, libraries and college buildings. In 1896-97 Cox painted murals in the Library of Congress in Washington, D.C. Cox also made numerous mosaics for places like the Wisconsin State Capitol building.