While he was still working for Louis Sullivan, Frank Lloyd Wright (who was 19 at the time) designed the large but only 11-room Charnley-Persky House , and proclaimed with his soon-to-be-trademarked bombast that it was the ‘first modern building.’ Why? Simply because it did away with Victorian gaudiness in favor of plain, abstract forms that went on to become the modern style. It was completed in 1892 and now houses the Society of Architectural Historians.
