-
Archduke Ferdinand was assassinated
-
Germany Declares war on Russia
-
Germany declared war on France
-
Germany invades neutral Belgium. Britain responds by declaring war on Germany.
-
Austria-Hungary declares war on Russia
-
The first trenches on the Western front are dug.
-
The British ship, the Lusitania, is torpedoed and sinks off the Irish coast; 1,198 passengers drown, including 114 Americans.
-
British deploy poison gas in battle near Loos; many British troops were poisoned by the gas.
-
Henry Ford charters a "Peace Ship," in an effort to end World War I.
. -
President Woodrow Wilson publicly demands that Germany end unrestricted submarine warfare.
-
During the six-day Easter Monday rebellion, Irish nationalists declare an independent Irish republic.
-
Period: to
The Allies fail to break through German lines at the Battle of the Somme. On July 1, the British suffered 60,000 casualties including 20,000 dead. Britain used the tank for the first time during this battle.
-
Woodrow Wilson re-elected President of the United States with campaign slogan: "He kept us out of the war"
-
Britain intercepts and translates German Foreign Secretary Zimmermann's telegram to Mexico urging its entry into war against the United States.
-
Germany resumes unrestricted submarine warfare.
-
The Associated Press publishes the "Zimmermann Telegram," which proposed a German alliance with Mexico and promised Mexico recovery of lost territory in Arizona, New Mexico, and Texas.
-
In a speech asking Congress to declare war against Germany, President Wilson says, "The world must be made safe for democracy."
-
U.S. enters WWI
