Four German Navy Zeppelins attempt to bomb England. Two suffer engine trouble, while L 9, attacks a benzole plant at Skinningrove, Yorkshire, but her bombs fail to penetrate the roof of the benzol house or of a neighboring TNT store, and there are no casualties. L 13, however, bombs London – including the dropping of a 660-lb bomb, the largest yet dropped on Britain – killing 22 people and inflicting the most damage – valued at £530,787 – in a single airship or airplane bombing raid throughout all of World War I. Her commander, Kapitänleutnant Heinrich Mathy, becomes a great hero in Germany.