One hundred years ago, on November 21, 1916, having hit a German mine in the strait between the island of Kea and mainland Greece, the Britannic, a passenger liner, the twin of the Titanic that died in 1912, sank. He was involved in the evacuation of the wounded from the Thessaloniki front. The Britannic sank in 57 minutes, but only 30 of the 1,066 people on board were killed. Lessons were learned from the sinking of the Titanic, as well as the Lusitania, sunk by a German submarine in 1915. The first ships arrived at the crash site just 53 minutes after the Britannic sank.