German submarine sinks Lusitania - HISTORY
Year
1915
Month Day
May 07

German submarine sinks Lusitania

On the afternoon of May 7, 1915, the British ocean liner Lusitania is torpedoed without warning by a German submarine off the south coast of Ireland. Within 20 minutes, the vessel sank into the Celtic Sea. Of 1,959 passengers and crew, 1,198 people were drowned, including 128 Americans. The attack aroused considerable indignation in the United States, but Germany defended the action, noting that it had issued warnings of its intent to attack all ships, neutral or otherwise, that entered the war zone around Britain.

READ MORE: How the Sinking of Lusitania Changed World War I 

When World War I erupted in 1914, President Woodrow Wilson pledged neutrality for the United States, a position that the vast majority of Americans favored. Britain, however, was one of America’s closest trading partners, and tension soon arose between the United States and Germany over the latter’s attempted quarantine of the British isles. Several U.S. ships traveling to Britain were damaged or sunk by German mines, and in February 1915 Germany announced unrestricted submarine warfare in the waters around Britain.

In early May 1915, several New York newspapers published a warning by the German embassy in Washington that Americans traveling on British or Allied ships in war zones did so at their own risk. The announcement was placed on the same page as an advertisement of the imminent sailing of the Lusitania liner from New York back to Liverpool. The sinkings of merchant ships off the south coast of Ireland prompted the British Admiralty to warn the Lusitania to avoid the area or take simple evasive action, such as zigzagging to confuse U-boats plotting the vessel’s course. The captain of the Lusitania ignored these recommendations, and at 2:12 p.m. on May 7 the 32,000-ton ship was hit by an exploding torpedo on its starboard side. The torpedo blast was followed by a larger explosion, probably of the ship’s boilers, and the ship sunk in 20 minutes.

It was revealed that the Lusitania was carrying about 173 tons of war munitions for Britain, which the Germans cited as further justification for the attack. The United States eventually sent three notes to Berlin protesting the action, and Germany apologized and pledged to end unrestricted submarine warfare. In November, however, a U-boat sunk an Italian liner without warning, killing 272 people, including 27 Americans. Public opinion in the United States began to turn irrevocably against Germany.

READ MORE: History Faceoff: Should the U.S. Have Entered World War I? 

On January 31, 1917, Germany, determined to win its war of attrition against the Allies, announced that it would resume unrestricted warfare in war-zone waters. Three days later, the United States broke diplomatic relations with Germany, and just hours after that the American liner Housatonic was sunk by a German U-boat. On February 22, Congress passed a $250 million arms appropriations bill intended to make the United States ready for war. In late March, Germany sunk four more U.S. merchant ships, and on April 2 President Wilson appeared before Congress and called for a declaration of war against Germany. On April 4, the Senate voted to declare war against Germany, and two days later the House of Representatives endorsed the declaration. With that, America entered World War I.

HISTORY Vault

FACT CHECK: We strive for accuracy and fairness. But if you see something that doesn't look right, click here to contact us! HISTORY reviews and updates its content regularly to ensure it is complete and accurate.

ALSO ON THIS DAY

French defeated at Dien Bien Phu

In northwest Vietnam, Ho Chi Minh’s Viet Minh forces decisively defeat the French at Dien Bien Phu, a French stronghold besieged by the Vietnamese communists for 57 days. The Viet Minh victory at Dien Bien Phu signaled the end of French colonial influence in Indochina and cleared ...read more

Gary Cooper born

On May 7, 1901, Gary Cooper, who will become famous for his performances in such movies as High Noon and The Pride of the Yankees, is born in Helena, Montana. Cooper grew up on the ranch owned by his wealthy father, a Montana Supreme Court Justice. He was educated largely in ...read more

Leonid Brezhnev becomes president of the USSR

Leonid Brezhnev, one of Soviet leader Nikita Khrushchev’s most trusted proteges, is selected as Chairman of the Presidium of the Supreme Soviet—the Soviet equivalent to the presidency. This was another important step in Brezhnev’s rise to power in Russia, a rise that he later ...read more