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U.S. Steel Corporation Founded
United States Steel Corporation, more commonly known as U.S. Steel, is an American integrated steel producer headquartered in Pittsburgh, Pennsylvania, with production operations in the United States and Central Europe. -
President McKinley assassinated, Vice President Roosevelt becomes the 26th President
William McKinley, the 25th President of the United States, was shot on the grounds of the Pan-American Exposition at the Temple of Music in Buffalo, New York, on September 6, 1901, six months into his second term. -
Harley Davidson Founded
Harley-Davidson was founded in 1903 in Milwaukee, WI and officially incorporated in 1907 with Walter Davidson acting as the first president. -
The Ford Motor Company Founded
An American multinational automaker that has its main headquarters in Dearborn, Michigan, a suburb of Detroit. It was founded by Henry Ford and incorporated on June 16, 1903. -
The First World Series
The World Series was the first modern World Series to be played in Major League Baseball. It matched the American League (AL) champion Boston against the National League (NL) champion Pittsburgh in a best-of-nine series, with Boston prevailing five games to three, winning the last four. -
The Wright Brother's First Flight
They made the first controlled, sustained flight of a powered, heavier-than-air aircraft with the Wright Flyer on December 17, 1903, 4 mi (6 km) south of Kitty Hawk, North Carolina. ... The Wright brothers were also the first to invent aircraft controls that made fixed-wing powered flight possible. -
Albert Einstein Publishes his Theory of Relativity
Albert Einstein published the theory of special relativity in 1905, building on many theoretical results and empirical findings obtained by Albert A. Michelson, Hendrik Lorentz, Henri Poincaré, and others. -
Oklahoma Becomes a State
On September 17, 1907, the people of the Indian and Oklahoma Territories voted favorably on statehood. The vote was certified and delivered to the President of the United States Theodore Roosevelt. -
The Federal Bureau of Investigation Established
Attorney General Charles J. Bonaparte appointed an unnamed force of special agents to be the investigative force of the Department of Justice. The FBI evolved from this small group. -
New Mexico Becomes a State
New Mexico is a state in the Southwestern United States; its capital is Santa Fe, which was founded in 1610 as capital of Nuevo México, while its largest city is Albuquerque with its accompanying metropolitan area -
Arizona Becomes a State
Arizona, the Grand Canyon state, achieved statehood on February 14, 1912, the last of the 48 coterminous United States to be admitted to the union. -
The 16th Amendment Ratified
The Sixteenth Amendment to the United States Constitution allows Congress to levy an income tax without apportioning it among the states on the basis of population. -
The Women's Suffrage Procession
The Woman Suffrage Procession, in 1913, was the first suffragist parade in Washington, D.C. It was also the first large, organized march on Washington for political purposes. -
Henry Ford Coins the Assembly Line
On December 1, 1913, Henry Ford installs the first moving assembly line for the mass production of an entire automobile. His innovation reduced the time it took to build a car from more than 12 hours to one hour and 33 minutes. -
World War I Begins
World War I began after the assassination of Austrian archduke Franz Ferdinand by South Slav nationalist Gavrilo Princip on June 28, 1914. -
The United States Enters WWI
Germany embarked on a deadly gamble. Germany sank many American merchant ships around the British Isles which prompted the American entry into the war. -
The Spanish Flu
The Spanish flu, also known as the 1918 influenza pandemic, was an unusually deadly influenza pandemic caused by the H1N1 influenza A virus. -
The 18th Amendment Ratified, Establishing the Prohibition
The Eighteenth Amendment of the United States Constitution established the prohibition of alcohol in the United States. -
The 19th Amendment Ratified
The 19th Amendment guarantees American women the right to vote. ... Some tried to pass suffrage acts in each state—nine western states adopted woman suffrage legislation by 1912. Others challenged male-only voting laws in the courts. -
The National Football League Established
The National Football League is a professional American football league consisting of 32 teams, divided equally between the National Football Conference and the American Football Conference.