On May 31, 1916, the Battle of Jutland, the largest naval battle of World War I, began. From the article:
"Beatty withdrew until Jellicoe arrived with the main fleet. The Germans, now outgunned, turned for home. The British lost 14 ships and over 6,000 men, but were ready for action again the next day. The Germans, who had lost 11 ships and over 2,500 men, avoided complete destruction but never again seriously challenged British control of the North Sea."