sinking of the RMS Lusitania
1915 CE.
Shown on the map at 51.417°, -8.550°.
RMS Lusitania was a British-registered ocean liner that was torpedoed by an Imperial German Navy U-boat during the First World War on 7 May 1915, about 11 nautical miles (20 kilometres; 13 miles) off the Old Head of Kinsale, Ireland (then part of the United Kingdom). The attack took place in the declared maritime war-zone around the United Kingdom, three months after unrestricted submarine warfare against the ships of the United Kingdom had been announced by Germany following the Allied powers' implementation of a naval blockade against it and the other Central Powers. The passengers had been notified before departing New York of the general danger of voyaging into the area in a British ship, but the attack itself came without warning. From a submerged position 700 metres (2,300 ft) to starboard, U-20 commanded by Kapitänleutnant Walther Schwieger launched a single torpedo at the Cunard liner. After the torpedo struck, a second explosion occurred inside the ship, which then sank in only 18 minutes. U-20's mission was to torpedo warships and liners in Lusitania's area of operation.
Text from the Wikipedia article Sinking of RMS Lusitania, licensed CC BY-SA 4.0.