| 1478-1834: | |
| 1760-1820: |  | | | Reign of King George III (Hanover) from before birth until age 11 |
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| 1792-1815: | | | | Napoleonic war from before birth until age 6 |
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| 1800-1809: | | | | Thomas Jefferson elected president of US from before birth until age 0 |
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| 1809-1816: | | | | James Madison elected president of US from age 0 to age 7 |
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| 1809: | | | | Charles Darwin born at age 0 |
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| 1810: | | | | US pop. reaches 7.2 million at age 1 |
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| 1810: | | | | Homeopathy founded at age 1 |
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| 1812-1814: | | | | War of 1812 from age 3 to age 5 |
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| 1812: | | | | Missouri organized as a territory at age 3 |
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| 1812: | | | | Louisiana enters the union - 18th at age 3 |
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| 1815: | | | | Sumbawa volcano (Indonesia) erupts; 50,000 killed at age 6 |
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| 1815: | | | | Battle of Waterloo at age 6 |
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| 1815: | | | | French outlaw slavery in France at age 6 |
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| 1816: | | | | Photographic Negative at age 7 |
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| 1816: | | | | Indiana enters the union - 19th at age 7 |
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| 1816: | |
| 1817-1823: | | | | 1st Cholera pandemic from age 8 to age 14 |
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| 1817: | | | | Alabama organized as a territory at age 8 |
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| 1817-1824: | | | | James Monroe president of US from age 8 to age 15 |
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| 1817-1825: | | | | Erie canal constructed from age 8 to age 16 |
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| 1817: | | | | Mississippi enters the union - 20th at age 8 |
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| 1817: | | | | Pentrich Revolution - England's last revolution at age 8 |
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| 1818: | | | | Illinois enters the union - 21st at age 9 |
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| 1818: | | | | Savannah 1st steamship to cross the Atlantic at age 9 |
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| 1819: | | | | Oersted discovers electro-magnetism at age 10 |
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| 1819: | | | | Alabama enters the union - 22nd at age 10 |
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| 1819: | | | | Arkansas organized as a territory at age 10 |
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| 1820: | | | | Maine enters the union - 23rd at age 11 |
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| 1820-1830: | | | | Reign of King George IV (Hanover) from age 11 to age 21 |
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| 1821: | | | | 1st US women's college at age 12 |
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| 1821: | | | | Missouri enters the union - 24th at age 12 |
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| 1821: | | | | US pop. reaches 9.2 million at age 12 |
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| 1821-1829: | | | | Greek war of Independence from age 12 to age 20 |
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| 1822: | | | | Florida organized as a territory at age 13 |
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| 1824: | | | | Internal Combustion Engine at age 15 |
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| 1824-1828: | | | | John Quincy Adams president of US from age 15 to age 19 |
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| 1824: | | | | Erie canal finished at age 15 |
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| 1826: | | | | 1st railroad tunnel (England) at age 17 |
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| 1827: | | | | Ohms Law formulated at age 18 |
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| 1827: | | | | Ship's propeller (screw) at age 18 |
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| 1827: | | | | 1st Black newspaper Freedom's Journal at age 18 |
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| 1828: | | | | 1st railroad in the US at age 19 |
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| 1828: | | | | 1st Webster's Dictionary at age 19 |
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| 1828-1836: | | | | Andrew Jackson president of US from age 19 to age 27 |
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| 1829: | | | | 1st US patent on a typewriter at age 20 |
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| 1829-1851: | | | | 2nd Cholera pandemic from age 20 to age 42 |
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| 1830-1860: | | | | Underground railroad leads 100,000+ slaves to freedom in US from age 21 to age 51 |
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| 1830-1837: | | | | Reign of King William IV (Hanover) from age 21 to age 28 |
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| 1830: | | | | Mormons (Latter Day Saints) founded at age 21 |
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| 1832: | | | | Horse-drawn trolleys in New York at age 23 |
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| 1833: | |
| 1833: | | | | Slavery abolished in British Empire (home and colonies) at age 24 |
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| 1834: | | | | Modern computer conceived by Charles Babbage at age 25 |
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| 1835: | |
| 1835-1842: | | | | 2nd Seminole War from age 26 to age 33 |
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| 1835: | | | | Mormon leader Joseph Smith prophesies of 'coming of lord' by 1891 at age 26 |
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| 1836: | | | | Battle of the Alamo at age 27 |
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| 1836: | | | | Arkansas enters the union -25th at age 27 |
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| 1836: | | | | Texas war for independence from Mexico at age 27 |
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| 1837-1840: | | | | Martin Van Buren president of US from age 28 to age 31 |
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| 1837: | | | | Michigan enters the union - 26th at age 28 |
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| 1837-1901: | | | | Reign of Queen Victoria (Hanover) from age 28 until after line end |
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| 1837: | | | | Depression and Panic in the US - inflation, speculation at age 28 |
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| 1838-1839: | | | | Forced relocation of Cherokee from age 29 to age 30 |
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| 1839-1842: | | | | Opium war between China and the English from age 30 to age 33 |
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| 1841-1844: | | | | John Tyler president of US from age 32 to age 35 |
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| 1842: | | | | Chinese cede Hong Kong to the English at age 33 |
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| 1844: | | | | 1st telegraph line message, Washington to New York at age 35 |
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| 1845-1849: | | | | Irish Potato Famine from age 36 to age 40 |
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| 1845-1848: | | | | James K Polk president of US from age 36 to age 39 |
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| 1845: | | | | Florida enters the union - 27th at age 36 |
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| 1845: | | | | Texas enters the union - 28th at age 36 |
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| 1846-1848: | | | | The Mexican-US War from age 37 to age 39 |
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| 1846: | | | | Iowa enters the union - 29th at age 37 |
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| 1848: | | | | Wisconsin enters the union - 30th at age 39 |
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| 1848-1856: | | | | 1st gold rush in California -- Sutters Mill from age 39 to age 47 |
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| 1848: | | | | NY allows women to own real estate at age 39 |
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| 1848: | | | | Oregon organized as a territory at age 39 |
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| 1849: | | | | Fizeau measures speed of light at age 40 |
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| 1849-1852: | | | | Zachary Taylor president of the US from age 40 to age 43 |
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| 1850: | | | | World pop. est. at 1.1 billion at age 41 |
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| 1850: | | | | US pop reaches 23 million at age 41 |
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| 1850: | | | | Utah (included Nevada) organized as a territory at age 41 |
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| 1850: | | | | California enters the union - 31st at age 41 |
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| 1850: | | | | New Mexico organized as a territory at age 41 |
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| 1851: | | | | Gold rush in Australia at age 42 |
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| 1852-1859: | | | | 3rd Cholera pandemic from age 43 to age 50 |
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| 1853-1856: | | | | Franklin Pierce president of US from age 44 to age 47 |
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| 1853: | | | | Washington (included pt. of Idaho) organized as a territory at age 44 |
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| 1854: | | | | Kansas organized as a territory at age 45 |
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| 1854: | | | | Nebraska organized as a territory at age 45 |
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| 1854-1856: | | | | Crimean War from age 45 to age 47 |
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| 1857: | | | | Dred Scott decision: Blacks could not be US citizens at age 48 |
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| 1857-1866: | | | | Transatlantic cable laid from age 48 to age 57 |
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| 1857-1860: | | | | James Buchanan president of US from age 48 to age 51 |
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| 1858: | | | | India bill transfers government of India to England at age 49 |
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| 1858: | | | | Minnesota enters the union - 32nd at age 49 |
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| 1859: | | | | Darwin pub. Origin Of Species at age 50 |
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| 1859: | |
| 1859: | | | | Oregon enters the union - 33rd at age 50 |
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| 1860: | | | | South Carolina Secedes from the Union at age 51 |
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| 1860: | | | | Rifled barrel invented at age 51 |
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| 1861-1865: | | | | Civil War from age 52 to age 56 |
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| 1861: | | | | Colorado organized as a territory at age 52 |
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| 1861: | | | | Nevada organized as a territory at age 52 |
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| 1861: | | | | South Dakota organized as a territory at age 52 |
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| 1861: | | | | The Apache Declare War on the US at age 52 |
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| 1861-1865: | | | | Confederate States of America Exist from age 52 to age 56 |
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| 1861-1865: | | | | Abraham Lincoln president of US from age 52 to age 56 |
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| 1861: | | | | North Dakota organized as a territory at age 52 |
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| 1861: | | | | Transcontinental Telegraph completed at age 52 |
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| 1861: | | | | Kansas enters the union - 34th at age 52 |
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| 1861: | | | | Gold rush in New Zealand at age 52 |
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| 1862: | | | | US Homestead act at age 53 |
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| 1863: | | | | Arizona organized as a territory at age 54 |
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| 1863: | | | | Emancipation Proclamation frees southern slaves at age 54 |
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| 1863: | | | | Idaho organized as a territory at age 54 |
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| 1863: | | | | Battle of Gettysburg at age 54 |
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| 1863: | | | | West Virginia enters the union - 35th at age 54 |
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| 1863-1879: | | | | 4th Cholera pandemic from age 54 to age 70 |
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| 1864: | | | | Louisiana organized as a territory at age 55 |
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| 1864: | | | | Nevada enters the union - 36th at age 55 |
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| 1865: | | | | Ku Klux Klan founded at age 56 |
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| 1865: | | | | Lister invents Disinfection at age 56 |
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| 1865: | | | | President Lincoln assassinated at age 56 |
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| 1866-1868: | | | | Andrew Johnson president of US from age 57 to age 59 |
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| 1866: | | | | Walker, Mitchell 1st elected US black officials (Massachusetts) at age 57 |
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| 1867: | | | | Nebraska enters the union - 37th at age 58 |
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| 1867: | |
| 1867: | | | | Confederation of Canada at age 58 |
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| 1867: | | | | Alaska purchased from Russia at age 58 |
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| 1867: | | | | Diamonds discovered in South Africa at age 58 |
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| 1868-1878: | | | | War between Cuba and Spain from age 59 to age 69 |
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| 1869: | | | | Financial black friday caused by attempt to corner gold at age 60 |
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| 1869-1876: | | | | Ulysses S Grant president of US from age 60 to age 67 |
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| 1869: | | | | Suez canal opened at age 60 |
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| 1869: | | | | Trans-continental railroad completed at age 60 |
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| 1869: | | | | Cutty Sark built at age 60 |
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| 1870: | | | | 1st black US senator (Hiram Revels) at age 61 |
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| 1870: | | | | US black men can vote at age 61 |
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| 1870-1871: | | | | Franco-Prussian war from age 61 to age 62 |
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| 1871: | | | | Great Fire destroys Chicago at age 62 |
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| 1873-1878: | | | | Depression, banks fail from age 64 to age 69 |
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| 1873: | | | | Color Photographs at age 64 |
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| 1876: | | | | Colorado enters the union - 38th at age 67 |
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| 1876: | | | | Little Big Horn - Battle at age 67 |
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| 1876: | | | | Telephone (Bell, Latimer) at age 67 |
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| 1876: | | | | American Centennial at age 67 |
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| 1877: | | | | Wax Cylinder Musical Recordings at age 68 |
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| 1877-1880: | | | | Ruthorford B Hayes president of US from age 68 until after line end |
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| 1878: | | | | 1st commercial telephone exchange in US at age 69 |
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| 1879: | | | | Electric Light Bulb (Edison) at age 70 |
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| 1879: | |
