Creating a story in just one single-panel is a remarkable feat, especially when it includes a funny punchline. Leigh Rubin, the mastermind behind ‘Rubes Cartoons,’ excels at this challenging art form.

You tell me. Be witty, funny, crazy, absurd or snarky---just try to keep it clean. There’s no limit on the number of entries.

Throughout the Civil War, Reconstruction, and the early years of the Gilded Age, Thomas Nast used his political cartoons ...