The Civil War didn’t quite end with Lee’s surrender. The Confederate man-of-war CSS Shenandoah was in the Arctic Ocean at the time, and kept attacking Union ships for four more months.

By the time it stopped, the Shenandoah had carried the Confederate flag completely around the world. It sank or captured 38 ships, two-thirds of them after the war ended, and took close to a thousand prisoners. Oops.