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Archduke Franz Ferdinad heir to Austria Hungary's throne, and his wife, Sophie, are assinated by Serbian nationalist Gavrilo Princip while the couple were visiting Sarajevo.
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Germany declares war on Serbia
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United Kingdom declares war on France
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Germany declares a war zone around Great Britain, essentially effecting a submarine blockade where even neutral merchant vessels were to be potential.
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The Dardanelles Campaign Targets
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The Second Battle of Ypress begins
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The British Ocean Liner Lusitania is sunk by German U-boat, U-20.
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The Battle of Galnpoli begins,
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The Battle of Verdun begins. The Battle of Verdun was the longest battle of World War I and was one of the bloodiest.
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The Battle of Jutland, the major naval battle of the war begins.
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During the Battle of the Somme, tanks are first introduced into battle.
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Germany sends the zimmerman telegram to Mexico in an effort to entice Mexico to join the war. The British intercept and decipher the coded message.
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The armistice agreed upon between the new Russian government and the Central Powers goes into effect.
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U.S. President Wardrow Wilson issues his fourteen points to peace
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The Treaty of Versailles officially ended the World War1
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Two gunmen robbed and killed the guard and paymasterof a South Braintree, Massachusetts shoe factory. Two Italian immigrants were convicted of the murder which created a national public outcry of innocence and an unfair trial.
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The First Radio Commrercial was broadcasted
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A joint resolution to officially end World War I in the U.S. finally passes.
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The Cable Act is passed in the U.S.
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Warner Brothers Pictures is incorporated.
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Calvin Coolidge wins his first election as President, retaining the White House for the Republican Party over his Democratic foe, John W. Davis, and Progressive Party candidate Robert M. La Follette. The Electoral margin was 382 to 136 (Davis) to 13 (La Follette).
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Nellie Tayloe Ross is inaugurated as the first woman governor of the United States in Wyoming. Miriam Ferguson is installed two weeks later as the second during a ceremony in Texas.
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The first flight to the North Pole and back occurs when pilot Floyd Bennett, with Richard Evelyn Byrd as his navigator, guided a three-engine monoplane. They were awarded the Medal of Honor for their achievement.
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Work on the gigantic sculpture at Mount Rushmore begins. Sculptor Gutzon Borglum would complete the task of chiseling the busts of four presidents; George Washington, Thomas Jefferson, Abraham Lincoln, and Theodore Roosevelt, fourteen years later.
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Amelia Earhart becomes the first woman to fly over the Atlantic Ocean
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Future Civil Rights leader Martin Luther King is born in his grandfather's house in Atlanta, Georgia.
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Pluto was discovered
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Empire State Building was complete
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Charles Lindbergh's baby was kidnapped.
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Giuseppe Zangara tried to kill President Franklin D. Roosevelt.
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The U.S. Securities and Exchange Commission is established with the signing of the Securities Exchange Act into law by President Franklin D. Roosevelt.
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The Social Security Act is passed by Congress as part of the New Deal legislation and signed into law by President Franklin D. Roosevelt. It would begin payouts to retirees within two years. Workers began contributing into the system during the same year, at a rate of 2% of the first $3,000 in earnings, half paid by the employee and half paid by the employer.
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Gone with the Wind is published by Margaret Mitchell.
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At Lakehurst, New Jersey, the German airship Hindenburg bursts into flames while mooring. The fire consumes the largest airship in the world, 804 feet long, within one minute, causing the death of thirty-six people.
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The National Minimum Wage is signed into law within the federal legislation known as the Fair Labor Standards Act. It established a minimum wage of $0.25 at the time, as well as time and one half for overtime and the prohibition of most employment for minors.
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The Baseball Hall of Fame opens in Cooperstown, New York, home of one of baseball's founders, Abner Doubleday. The first class of inductees included Ty Cobb, Babe Ruth, Honus Wagner, Christy Mathewson, and Walter Johnson.
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the most visited park in the National Park Service today, is officially dedicated by President Franklin D. Roosevelt. The park, whose land had been acquired in part by John D. Rockefeller, Jr. with a $5 million contribution, straddles the North Carolina and Tennessee state lines.
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The museum is dedicated at the Tuskegee Institute with the participation of such luminaries as Henry Ford. The museum is now part of the Tuskegee Institute National Historic Site.
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The development of the first atomic bomb is signed into agreement between the Prime Minister of Great Britain, Winston Churchill, and President Franklin D. Roosevelt in Hyde Park, New York.
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The Jefferson Memorial in Washington, D.C. is dedicated on the 200th anniversary of Thomas Jefferson's birth by President Franklin D. Roosevelt.
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The Normandy Invasion, D-Day, occurs when one hundred and fifty-five thousand Allied troops, including American forces and those of eleven other Allied nations (Australia, Belgium, Canada, Czechoslovakia, France, Greece, the Netherlands, New Zealand, Norway, Poland, and the United Kingdom) land in France
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President Roosevelt dies suddenly; Vice President Harry S. Truman assumes the presidency and role as commander in chief of World War II.
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Four hundred thousand mine workers begin to strike, with other industries following their lead.
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The Truman Doctrine is announced to the U.S. Congress. When passed it would grant $400 million in aid to Greece and Turkey to battle Communist terrorism. President Harry S. Truman implements the act on May 22.
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The Soviet Union begins its land blockade of the Allied sectors of Berlin, Germany. A counter blockade by the west was put into effect, as well as a British and U.S. airlift of supplies and food, until both blockades were lifted on September 30, 1949.
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NATO, the North American Treaty Organization, is formed by the United States, Canada, and ten Western European nations (Belgium, Denmark, France, Iceland, Italy, Luxembourg, Netherlands, Norway, Portugal, United Kingdom). The treaty stated that any attack against one nation would be considered an attack against them all.
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The Korean War begins
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The first "Peanuts" cartoon strip begins
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Truman signs peace treaty with Japan. Officially ended world war 2
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A thick smog settled on London.The smog killed 4,000 people
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Joseph Stalin dies.
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Segregation was found "inherently unequal"
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Disneyland officially opened to the public.
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Emmitt Till was kidnapped and murdered by two white men.
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Invasion of egypt to regain western control of the Suez Canal.
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The Cat in The Hat was first published.
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NASA was founded.
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Castro becomes dictator of Cuba.
