1901 Assassination of William McKinley; the new U.S. President is Theodore Roosevelt, conservationist, imperialist, trust-buster, and friend of IU. The College Entrance Examination Board gives its first exam.
1902 First Studebaker car. William Lowe Bryan, an experimental psychologist who has also taught English, logic, mathematics, and languages at IU, becomes IU president, a post he will hold for 35 years.
1903 The Wright brothers make the world's first successful flight in a piloted, gasoline-powered aircraft. First Tour de France bicycle race.
1904 Four Filipino students arrive on campus as part of IUB's first international outreach program. Alpha Kappa Nu, later Kappa Alpha Psi, becomes IU's first African American fraternity.
1906 Upton Sinclair publishes The Jungle, an exposé of the meat-packing industry. Gary, Indiana, the largest U.S. city to be founded in the twentieth century, begins to house steelworkers for a huge new plant near Chicago. It is named for U.S. Steel board chairman Elbert H. Gary.
1908 After heavy political maneuvering, IU's School of Medicine absorbs the Indiana Medical College of Indianapolis.
1911 Birth of two sports traditions. Carl G. Fisher organizes the 500-Mile Race (Indy 500) to promote interest in automobiles, and the first Indiana state high school basketball tournament, played in IU's original Assembly Hall, unleashes annual Hoosier Hysteria.
1913 The Armory Show in New York City introduces Americans to post-Impressionist art, especially cubist and Dadaist. Appearance of first U.S. crossword puzzle. The new assembly line at Ford Motor Co. lowers assembly time per car from 12.5 hours to 90 minutes.
1914 IU's Training School for Nurses (later School of Nursing) established. Archduke Ferdinand is assassinated by a Serbian nationalist in Sarajevo. Outbreak of World War I.
1916 Over 2 million die in the battles of Verdun and the Somme. Woodrow Wilson is reelected U.S. President (slogan: "He kept us out of the war"). In Richmond, the Gennett studio pioneers recording of jazz greats.
1917 After continued German submarine attacks, the U.S. enters the war. Thousands of IU students will either enlist or train on campus. Fort Wayne center opens.
1918 Germany and allies surrender in the face of battle losses, mutiny, sickness, and revolution. Beginning of the influenza pandemic that will kill over one out of every hundred humans worldwide. Intense fighting follows revolution in Russia.
1919 Women gain vote in United States; prohibition law enacted. Frances Marshall is the first black woman to graduate from IU.
1920 Warren Harding is elected U.S. President on "Normalcy" platform. Socialist Eugene V. Debs of Terre Haute, in prison for antiwar speechmaking, receives 915,302 votes on his fifth try at the Presidency. School of Commerce and Finance (later School of Business) is established in Bloomington.
1921 Premiere of the Jordan River Revue, an IU variety show produced by students.
1922 IU offers classes in Gary and the South Bend area.
1924 First unit of the James Whitcomb Riley Hospital for Children is dedicated.
1925 Indiana Dental College becomes a school of Indiana University. The Old Oaken Bucket makes its first appearance during the IU-Purdue football game at which IU's Memorial Stadium is dedicated.
1926 Crusading editor Don Mellett '13 of Canton, Ohio, is ambushed and killed on orders from criminal interests he has targeted. His paper will win the Pulitzer Prize next year based on his reporting--the first of dozens of Pulitzers recognizing work by former IU journalists.
1927 "Dick and Jane" readers debut. They follow a formula developed by Indiana native Zerna Sharp.
1928 In Paris, 63 world powers renounce war. U.S. President Herbert Hoover announces the nation is getting closer to "the final triumph over poverty."
1929 The October stock market crash plunges the U. S. into its worst depression, but Americans still seek out entertainment. Popular composer Hoagland ("Hoagy") Carmichael '26 enjoys his first big success with "Star Dust," to be followed the next year by "Georgia on My Mind." The first yo-yos are manufactured in Columbus, Indiana.