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Date |
Event(s) |
| 1 | 1904 | - 1904: First telephone answering machine
- 1904: Beatrix Potter's 'The Tale of Benjamin Bunny' is published
- 1904: First Popular American Film
- 1904: Ground Broken on Panama Canal
- 1904: New York City Subway Opens
- 1904: Russo-Japanese War Begins
- 1904: Trans-Siberian Railway Completed
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| 2 | 1905 | - 1905: Einstein evolved the Special Theory of relativity.
- 1905: Aliens Act in Britain tries to control immigration
- 1905: Bloody Sunday - Russian Revolution of 1905
- 1905: Einstein Proposes His Theory of Relativity
- 1905: Freud Publishes His Theory of Sexuality
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| 3 | 1906 | - 1906: Finland First European Country to Give Women the Right to Vote
- 1906: Kellogg's Starts Selling Corn Flakes
- 1906: San Francisco Earthquake
- 1906: Upton Sinclair Writes The Jungle
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| 4 | 1907 | - 1907: Electric washing machine - The Thor - on sale
- 1907: Ten Rules of War Established at the Second Hague Peace Conference
- 1907: First Electric Washing Machine
- 1907: Picasso Introduces Cubism
- 1907: Typhoid Mary Captured for the First Time
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| 5 | 1908 | - 1908: Henry Ford created the Model T automobile
- 1908: Electric iron and toaster patented
- 1908: Earthquake in Italy Kills 150,000
- 1908: Ford Introduces the Model-T
- 1908: Three Year-Old Pu Yi Becomes Emperor of China
- 1908: Turks Revolt in the Ottoman Empire
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| 6 | 1909 | - 1909: French Engineer Louis Bleriot is first to cross the English Channel in an airplane
- 1909: Pianos reach maximum market penetration in UK households at one per ten people
- 1909: 800 million postcards sold in England
- 1909: Japan's Prince Ito is Assassinated
- 1909: Plastic Is Invented
- 1909: Robert Peary Becomes the First to Reach the North Pole
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| 7 | 1910 | - 1910: Georges Claude discovered that electricity conducted through a tube of the rare inert gas, neon, gives a bright red glow and that other gases gave off other colors, e.g., argon gives blue, helium gives yellow and white, etc.
- 1910: First live opera broadcast
- 1910: Halley's Comet Makes an Appearance
- 1910: The Tango Catches On
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| 8 | 1911 | - 1911: British National Insurance Act lays foundation for health and unemployment insurance
- 1911: The Chinese Revolution
- 1911: Ernest Rutherford Discovers the Structure of an Atom
- 1911: Greenwich Mean Time Adopted
- 1911: The Incan City of Machu Picchu Discovered
- 1911: Mona Lisa Is Stolen
- 1911: Roald Amundsen Reaches the South Pole
- 1911: Standard Oil Company Broken Up
- 1911: Triangle Shirtwaist Factory Catches on Fire
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| 9 | 1912 | - 1912: The Sinking of the Titanic 1,515 people lose their lives.
- 1912: Parachutes Invented
- 1912: Piltdown Man, the 'Missing Link,' Discovered (Fraud)
- 1912: SOS Accepted as Universal Distress Signal
- 1912: The Titanic Sinks
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| 10 | 1913 | - 1913: Leo Baekeland invented a plastic laminate, known as Bakelite, and later as 'formica'.
- 1913: First assembly line introduced in Ford automobile factory
- 1913: The "Armory Show," an international display of some 1600 works of modern art, and one of the more important U.S. art exhibitions ever held, opens at the 69th-regiment armory in New York City; it arouses public curiosity, generates sensational news coverage, and helps change the direction of American art
- 1913: First Crossword Puzzle
- 1913: Henry Ford Creates Assembly Line
- 1913: Personal Income Tax Introduced in U.S.
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| 11 | 1914 | - 1914: First World War starts
- 1914: Archduke Ferdinand Assassinated
- 1914: Battle of the Marne
- 1914: Charlie Chaplin First Appeared as the Little Tramp
- 1914: First Traffic Light
- 1914: Panama Canal Officially Opened
- 1914: World War I Begins
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| 12 | 1915 | - 1915: Armenian Genocide
- 1915: D.W. Griffith's The Birth of a Nation Released
- 1915: Germans Use Poison Gas as a Weapon
- 1915: Lusitania Sunk by German U-Boat
- 1915: Second Battle of Ypres
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| 13 | 1916 | - 1916: Navy employs animal trainer 'Captain' Joseph Woodward's music hall sea lions for U-boat sabotage.
- 1916: Coca-Cola adopts a distinctive bottle which identifies the company internationally
- 1916: Battle of the Somme
- 1916: Battle of Verdun
- 1916: Easter Rising in Ireland
- 1916: First Self-Service Grocery Store Opens in U.S.
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| 14 | 1917 | - 1917: Bolshevik revolution in Russia installs a new government headed by V.I. Lennin
- 1917: French artist Marcel Duchamp submits a porcelain urinal, signed "R. Mutt" and titled "Fountain," to the New York Independents Exhibition; it is rejected.
- 1917: First Pulitzer Prizes Awarded
- 1917: Mata Hari Executed for Being a Spy
- 1917: Russian Revolution
- 1917: U.S. Enters World War I
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| 15 | 1918 | - 1918: Influenza Epidemic
- 1918: Russian Czar Nicholas II and His Family are Killed
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| 16 | 1919 | - 1919: Eddington and Frank W. Dyson measured the bending of starlight by the gravitational pull of the sun, thus confirming Einstein's general theory of relativity
- 1919: Prohibition Begins in the U.S.
- 1919: Treaty of Versailles Ends World War I
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| 17 | 1920 | - 1920: Bubonic Plague in India
- 1920: League of Nations Established
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1904 - 1920 (15 years)