A Year In History: 1917

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This Year in History:

1917

Discover what happened in this year with HISTORY’s summaries of major events, anniversaries, famous births and notable deaths.

January 31

Germans unleash U-boats

On January 31, 1917, Germany announces the renewal of unrestricted submarine warfare in the Atlantic as German torpedo-armed submarines prepare to attack any and all ships, including civilian passenger carriers, said to be sighted in war-zone waters. When World War I erupted in 1914, President Woodrow Wilson pledged neutrality for the United States, a position […]

February 5

Mexican constitution proclaimed

After seven years of revolution and civil upheaval, Mexican President Venustiano Carranza proclaims the modern Mexican constitution, which promises the restoration of lands to native peoples, the separation of church and state, and dramatic economic and educational reforms. The progressive political document, approved by an elected constitutional convention, combined revolutionary demands for land reform with advanced […]

February 5

Immigration Act passed over President Wilson’s veto

With more than a two-thirds majority, Congress overrides President Woodrow Wilson’s veto of the previous week and passes the Immigration Act of 1917. The law required a literacy test for immigrants and barred Asiatic laborers, except for those from countries with special treaties or agreements with the United States, such as the Philippines. During the […]

February 7

German sub sinks Scottish passenger ship SS California

Just three days after U.S. President Woodrow Wilson’s speech of February 3, 1917—in which he broke diplomatic relations with Germany and warned that war would follow if American interests at sea were again assaulted—a German submarine torpedoes and sinks the Scottish Anchor Line passenger steamer SS California off the Irish coast. The SS California departed New […]

February 24

Zimmermann Telegram presented to U.S. ambassador

During World War I, British authorities give Walter H. Page, the U.S. ambassador to Britain, a copy of the “Zimmermann Telegram,” a coded message from Arthur Zimmermann, the German foreign secretary, to Count Johann von Bernstorff, the German ambassador to Mexico. In the telegram, intercepted and deciphered by British intelligence in late January, Zimmermann stated […]

March 1

Zimmermann Telegram published in United States

On March 1, 1917, the text of the so-called Zimmermann Telegram—a message from the German foreign secretary, Arthur Zimmermann, to the German ambassador to Mexico proposing a Mexican-German alliance in the case of war between the United States and Germany—is published on the front pages of newspapers across America. In the telegram, intercepted and deciphered […]

March 2

Puerto Ricans become U.S. citizens, are recruited for war effort

Barely a month before the United States enters World War I, President Woodrow Wilson signs the Jones-Shafroth Act, granting U.S. citizenship to the inhabitants of Puerto Rico. Located about 1,000 miles southeast of Florida—and less than half that distance from the coast of South America—Puerto Rico was ceded to the U.S. by Spain in December […]

March 5

Swedish prime minister resigns over WWI policy

Prime Minister Hjalmar Hammarskjöld of Sweden, father of the famous future United Nations Secretary General Dag Hammarskjöld, resigns on this day in 1917 after his policy of strict neutrality in World War I—including continued trading with Germany, in violation of the Allied blockade—leads to widespread hunger and political instability in Sweden. The elder Hammarskjöld, a professor of […]

March 8

February Revolution begins, leading to the end of czarist rule in Russia

In Russia, the February Revolution (known as such because of Russia’s use of the Julian calendar) begins on March 8, 1917 when riots and strikes over the scarcity of food erupt in Petrograd. One week later, centuries of czarist rule in Russia ended with the abdication of Nicholas II, and Russia took a dramatic step […]

April 2

Jeannette Rankin, first woman elected to U.S. Congress, assumes office

Jeannette Pickering Rankin, the first woman ever elected to Congress, takes her seat in the U.S. Capitol as a representative from Montana. Born on a ranch near Missoula, Montana Territory, in 1880, Rankin was a social worker in the states of Montana and Washington before joining the women’s suffrage movement in 1910. Working with various […]