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—— ON THIS DAY ——
MAY 7, 1915
11 miles off the Old Head of Kinsale, Ireland
111 years ago
The sinking of the Lusitania, depicted by a contemporary artist — the liner went from torpedo impact to fully submerged in eighteen minutes, taking 1,198 people with her.
On May 7, 1915, the British ocean liner RMS Lusitania — the largest ship in the world when she was launched in 1906, and still one of the fastest — was struck by a single torpedo from the German submarine U-20 eleven miles off the Irish coast. She sank in eighteen minutes. Of the 1,962 people aboard, 1,198 died, including 128 Americans. The speed of the sinking — far faster than the Titanic had taken three years earlier — was caused by a second explosion whose source is still debated.
The Germans had published warnings in American newspapers that morning that the Atlantic shipping lanes around Britain constituted a war zone and that ships sailing under Allied flags did so at their own risk. Few took the warning seriously. The idea that a submarine would torpedo a passenger liner in full daylight without warning — against the rules of war as then understood — seemed almost unthinkable. It happened anyway.
—— MARQUEE EVENT ——
The Lusitania sinking as reported in the Illustrated London News — one of the most widely reproduced contemporary depictions, which shaped public understanding of the disaster across the British Empire.
The cargo the Lusitania was carrying remains controversial. The official British position in 1915 was that the ship carried no war materials. Documents declassified since have confirmed she was carrying rifle ammunition, shell casings, and non-explosive fuse components — legitimately but secretly. The German government used this to argue she was a legitimate military target. The British and American publics, confronted with images of children's bodies washed ashore in Ireland, were not persuaded.
The sinking shifted American public opinion against Germany in ways that would matter two years later. President Woodrow Wilson had been reelected in 1916 on the slogan 'He kept us out of war.' But the pattern of unrestricted submarine warfare — including the sinking of the Lusitania — had been accumulating as an argument for intervention. When Germany resumed unrestricted submarine warfare in February 1917 and the Zimmermann telegram was published, the Lusitania was still vivid in American memory. The United States declared war in April.
The wreck lies 300 feet below the surface off the coast of Ireland. It was surveyed extensively in the 1990s and early 2000s. The surveys confirmed the presence of .303 rifle ammunition in the cargo hold — but found no evidence of the large quantities of explosives that some historians had proposed to explain the speed of the sinking. The second explosion was most likely caused by coal dust ignited by the torpedo, or damage to the steam system. The official cause of the rapid sinking remains technically uncertain.
—— WHY THIS MATTERS ——
The Lusitania changed the moral calculus of unrestricted submarine warfare. Before May 7, 1915, sinking a passenger liner without warning was understood to be beyond the limits of acceptable conduct even in wartime. The Lusitania established that Germany would do it anyway. That decision ultimately contributed to American entry into the war and to Germany's defeat.
The 128 American deaths created a debt of anger that was still active when the United States entered the war in 1917. The relationship between the Lusitania and the war declaration is not simple — two years elapsed, and many other factors intervened — but the sinking remained a live grievance in American public discourse throughout the period of neutrality.
The wreck is still generating new historical knowledge. Surveys of the wreck site continue to produce information about the cargo, the damage pattern, and the speed of the sinking that were impossible to determine from the 1915 investigations. One hundred and ten years later, the Lusitania is still not entirely explained.
—— THE TAKEAWAY ——
On May 7, 1915, a single torpedo ended the lives of 1,198 people in eighteen minutes. The cause of the second explosion that accelerated the sinking is still uncertain. The political consequences — American entry into the First World War, Germany's defeat, the redrawing of Europe — unfolded over the following decade.
—— QUOTE OF THE DAY ——
"I did not hesitate. Fire."
— Kapitänleutnant Walther Schwieger, U-20 war diary, describing his decision to torpedo the Lusitania, May 7, 1915
—— OUR QUIZ OF THE DAY ——
How much do you know about the Lusitania, the cargo she was carrying, the second explosion, and the chain of consequences that led from the sinking to American entry into the First World War?
