German expressionists created some of the most powerful art of the 20th century and are central to a new exhibition at the National Gallery of Art, on view from February 23 to June 29, 2014. Starting with a foundation of works from the 18th and 19th centuries and culminating with contemporary works from the 1960s and 1970s, "Modern German Prints and Drawings from the Kainen Collection" maps the development of modern German art.