On view at the Smithsonian National Museum of American History is the exhibit Cultivating America's Gardens, which traces the history of gardening in the United States from the 1600s through the present. The exhibit was launched in May 2017 and runs through August 2018. For those who can't make the trip to Washington, D.C., the Smithsonian offers this companion online exhibit. Cultivating America's Gardens is comprised of seven sections, each of which are accompanied by digitized material in the Smithsonian collection. For instance, in the first section, Gardening for Science, visitors can view a map and sketch of a mourning dove by English naturalist Mark Catesby and images from Asa Grey's 1858 book Botany for Young People and Common Schools. The Gardening for the Common Good section features a 1919 newspaper comic by J.N. Darling entitled "War Garden to Do its Duty" and the cover of a 1943 issue of World's Finest Comics, which depicts Batman, Robin, and Superman tending to a victory garden.