About WWI

Mail service has historically been a cornerstone of American life and communication, and that was especially true for those serving overseas during World War I.

On Jan. 16, 1919, after nearly a century of activism, the Prohibition movement finally achieved its goal to rid American society of “the tyranny of drink.” Passed by Congress on Dec.

In his war address to Congress on April 2, 1917, President Woodrow Wilson spoke of the need for the United States to enter the war in part to “make the world safe for democracy.” Almost a year late

Indelibly tied to Americans, “Doughboys” became the most enduring nickname for the troops of General John Pershing’s American Expeditionary Forces, who traversed the Atlantic to join war weary Alli

By February 1917, the United States was on the verge of war, though the country was almost totally unprepared. After entering World War I, The U.S.

Temporarily on loan from the National Archives and Records Administration in Washington, D.C., Woodrow Wilson signed Presidential Proclamation 1364 concerning the Declaration of War against Germany

On March 1, 1917, the American public learned about a German proposal to ally with Mexico if the United States entered the war.

The Paris Peace Conference was held in France between Jan. 18, 1919 – Jan. 21, 1920 to finalize the peace between the Allied and Central Powers.

When the 19th Amendment took effect on Aug. 18, 1920, it followed over a century and a half of activism by and for women.

Grace Banker was the Chief Operator of the U.S. Signal Corps’ women telephone operators.

At the outset of World War I, women in the United States did not have the right to vote in national elections and could not serve in the military.

With millions of men away from home, women filled manufacturing and agricultural positions on the home front.

Why did America enter World War I?

This interactive map shows you which countries and territories were involved in the Great War and how they were aligned.

How long did World War I last? Who fought whom? Journey through the story of the Great War with our Interactive WWI Timeline, covering the world events of 1914‑1920.