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Date |
Event(s) |
| 1 | 1909 | |
| 2 | 1910 | - 1910: UK - 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: UK - First live opera broadcast
- 1910: UK - Halley's Comet Makes an Appearance
- 1910: UK - The Tango Catches On
- 1910: South Africa - Formation of Union of South Africa
- 1910: UK - Death of Edward VII
- 1910: UK - Population of England/Wales 36,070, Scotland - 4,761, N. Ireland - 1,251
- 1910: UK - Contributory National Insurance Scheme introduced by David Lloyd George, provides medical care, maternity benefits and sick pay
- 1910: UK - Parliament Act reduces House of Lords' veto to delaying power; House of Commons begins to pay members a stipend
- 1910: UK - There are 146,000 female clerical workers in England, up from 22,000 in 1891, 7,000 in 1881, and 19 in 1851
- 1910: USA - Thomas Edison demonstrated the first talking motion picture.
- 1910: UK - Infant mortality now 110 per 1000 live births, declines steadily to 24.4 in 1956; emigration reaches about 464,000/year; divorces average 823/year, go to 3,619/year in 1920-1922, 7,955/year in 1939 (latter rise because willful desertion, cruelty and incurable insanity added to causes in 1937)
- 1910: UK - Strikes of seaman, dock and transport workers, general railway strike for higher wages during period to 1912
- 20 Jan 1910: UK - George V, ruler of England to 1936. House of Windsor (name adopted Jul 17, 1917): 2nd son of Edward VII, married Princess Mary of Teck.
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| 3 | 1911 | |
| 4 | 1912 | - 1912: North Sea - The Sinking of the Titanic: 1,515 people lose their lives.
- 1912: UK - Parachutes Invented
- 1912: UK - Piltdown Man, the 'Missing Link,' Discovered but later revealed as a fraud
- 1912: SOS Accepted as Universal Distress Signal
- 1912: UK - Motorized movie cameras invented, and replaced hand-cranked cameras.
- 1912: UK - The first tank patented by Australian inventor De La Mole.
- 1912: USA - Clarence Crane created Life Savers candy
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| 5 | 1913 | - 1913: USA - Leo Baekeland invented a plastic laminate, known as Bakelite, and later as Formica
- 1913: Detroit, MI, USA - First assembly line introduced in Ford automobile factory
- 1913: New York, NY, USA - 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. It arouses public curiosity, generates sensational news coverage, and helps change the direction of American art
- 1913: USA - Personal Income Tax introduced
- 1913: Washington, DC, USA - Woodrow Wilson president 1913-1921.
- 1913: UK - The crossword puzzle was invented by Arthur Wynne.
- 1913: USA - The Merck Chemical Company patented what is now known as ecstasy.
- 1913: USA - Mary Phelps Jacob invents the bra
- 1913: USA - Gideon Sundback invents the modern zipper.
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| 6 | 1914 | - 1914: UK - Battle of the Marne
- 1914: USA - Charlie Chaplin First Appeared as the Little Tramp
- 1914: UK - First Traffic Light
- 1914: Panama - Panama Canal Officially Opened
- 1914: Egypt - Britain proclaims protectorate over Egypt
- 1914: France - Stunning British casualty figures come from Loos -60,000; in on the Somme, 60,000 in one day; total for 5-month offensive - 400,000; Germans use poison gas at Ypres
- 1914: Ireland - Easter Monday Irish rebellion, Irish Volunteers (later Irish Republican Army) proclaim Irish Republic; German submarine lands Sir Roger Casement who is arrested, German ship with rifles intercepted off Irish coast, Casement executed; Sinn Fein and Ulster cannot agree on partition
- 1914: France - Passchendaele, British advance of 5 miles costs 400,000 casualties
- 1914: UK - Balfour Declaration promises Jews home in Palestine
- 1914: UK - First use of massed tanks (Battle of Cambrai)
- 1914: UK - King George V adopts Windsor as Royal Family's English surname in place of family's German name
- 1914: USA - Garrett A. Morgan invents the Morgan gas mask
- 4 Aug 1914: World War I begins and lasts until 1918, because Germany violates a treaty to respect neutrality of Belgium; Turkey enters war on Germany's side
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| 7 | 1915 | |
1909 - 1915 (6 years)