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1.1676 – The Danish astronomer Ole Rømer presents the first quantitative measurements of what ?
Speed of Sound
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Speed of Light
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Distance to the Sun
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Diameter of the Moon
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2.1789 – Which state ratifies the United States Constitution and is admitted as the 12th U.S. state ?
North Carolina
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South Carolina
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West Virginia
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Maine
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3.1905 – Which scientist's paper that leads to the mass–energy equivalence formula, is published in the journal Annalen der Physik ?
J. Robert Oppenheimer
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Max Planck
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Albert Einstein
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Alexander Fleming
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4.1910 – Sailors on board Brazil's warships violently rebel in what is now known as the Revolta da Chibata otherwise known as what ?
Bread Revolt
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Revolt at Sea
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Rum Revolt
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Revolt of the Lash
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5.1918 – The Parliament (Qualification of Women) Act 1918 is passed, allowing women to do what in the UK ?
Vote
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Stand for Parliament
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Join the Armed Forces
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Attend Universities
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6.1920 – Irish War of Independence: 31 people are killed in which city on a day that became known as "Bloody Sunday" ?
Belfast
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Cork
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Dublin
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Donegal
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7.1922 – Rebecca Latimer Felton of which state takes the oath of office, becoming the first female United States Senator ?
Georgia
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Florida
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Louisiana
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Tennessee
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8.1945 – The United Auto Workers strike at 92 General Motors plants in 50 cities to back up worker demands for a pay raise of what percentage ?
10%
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20%
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30%
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40%
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9.1961 – The "La Ronde" restaurant opens, it is the first revolving restaurant in the United States. But in which city ?
New York
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Honolulu
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Seattle
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Dallas
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10.1970 – Vietnam War: A joint USAF and Army team raids the Sơn Tây POW camp in an attempt to free Americans thought to be held there. It was known as what operation ?
Operation Ivory Coast
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Operation South Africa
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Operation Skeleton Coast
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Operation Sahara Desert
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11.1995 – The Dayton Agreement is initialed at the Wright-Patterson Air Force Base, near Dayton, Ohio, ending three and a half years of war in which country ?
Nicaragua
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Lebanon
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Bosnia and Herzegovina
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Armenia
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12.2004 – The second round of the presidential election is held, giving rise to massive protests and controversy over the election's integrity in which country ?
United States
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Argentina
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Sierra Leone
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Ukraine
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13.2004 – The Paris Club agrees to write off 80% (up to $100 billion) of which country's external debt ?
Iraq
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Iran
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Venezuela
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Papua New Guinea
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14.2013 – Fifty-four people are killed when the roof of a shopping center collapses in which European capital city ?
Lisbon
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Riga
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Oslo
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Ljubljana
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15.2017 – Robert Mugabe formally resigns as President of Zimbabwe, after how many years in office ?