| 1830-1860 | | Underground railroad leads 100,000 slaves to freedom in US from before birth until age 8 |
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| 1837-1901 | | Reign of Queen Victoria (Hanover) from before birth until age 49 |
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| 1848-1856 | | 1st gold rush in California from before birth until age 4 |
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| 1849-1852 | | Zachary Taylor president of the US from before birth until age 0 |
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| 1852-1859 | | 3rd Cholera pandemic from age 0 to 7 |
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| 1853-1856 | | Franklin Pierce president of US from age 1 to 4 |
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| 1853 | | Washington (included pt. of Idaho) organized as a territory at age 1 |
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| 1854-1856 | | Crimean War from age 2 to 4 |
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| 1854 | | Nebraska organized as a territory at age 2 |
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| 1854 | | Kansas organized as a territory at age 2 |
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| 1857 | | Dred Scott decision: Blacks could not be US citizens at age 5 |
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| 1857-1866 | | Transatlantic cable laid from age 5 to 14 |
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| 1857-1860 | | James Buchanan president of US from age 5 to 8 |
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| 1858 | | India bill transfers government of India to England at age 6 |
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| 1858 | | Minnesota enters the union - 32nd at age 6 |
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| 1859 | | Oregon enters the union - 33rd at age 7 |
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| 1859 | | Oil Well at age 7 |
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| 1859 | | Darwin pub. Origin Of Species at age 7 |
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| 1860 | | South Carolina Secedes from the Union at age 8 |
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| 1860 | | Rifled barrel invented at age 8 |
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| 1861 | | Kansas enters the union - 34th at age 9 |
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| 1861-1865 | | Confederate States of America Exist from age 9 to 13 |
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| 1861 | | Transcontinental Telegraph completed at age 9 |
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| 1861 | | South Dakota organized as a territory at age 9 |
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| 1861 | | North Dakota organized as a territory at age 9 |
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| 1861 | | Nevada organized as a territory at age 9 |
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| 1861-1865 | | Civil War from age 9 to 13 |
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| 1861-1865 | | Abraham Lincoln president of US from age 9 to 13 |
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| 1861 | | Colorado organized as a territory at age 9 |
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| 1861 | | The Apache Declare War on the US at age 9 |
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| 1861 | | Gold rush in New Zealand at age 9 |
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| 1862 | | US Homestead act at age 10 |
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| 1863 | | Arizona organized as a territory at age 11 |
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| 1863-1879 | | 4th Cholera pandemic from age 11 to 27 |
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| 1863 | | Idaho organized as a territory at age 11 |
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| 1863 | | Battle of Gettysburg at age 11 |
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| 1863 | | Emancipation Proclamation frees southern slaves at age 11 |
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| 1863 | | West Virginia enters the union - 35th at age 11 |
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| 1864 | | Louisiana organized as a territory at age 12 |
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| 1864 | | Nevada enters the union - 36th at age 12 |
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| 1865 | | Lister invents Disinfection at age 13 |
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| 1865 | | Ku Klux Klan founded at age 13 |
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| 1865 | | President Lincoln assassinated at age 13 |
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| 1866-1868 | | Andrew Johnson president of US from age 14 to 16 |
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| 1866 | | Walker, Mitchell 1st elected US black officials (Massachusetts) at age 14 |
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| 1867 | | Nebraska enters the union - 37th at age 15 |
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| 1867 | | Confederation of Canada at age 15 |
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| 1867 | | Dynamite at age 15 |
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| 1867 | | Alaska purchased from Russia at age 15 |
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| 1867 | | Diamonds discovered in South Africa at age 15 |
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| 1868-1878 | | War between Cuba and Spain from age 16 to 26 |
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| 1869 | | Suez canal opened at age 17 |
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| 1869-1876 | | Ulysses S Grant president of US from age 17 to 24 |
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| 1869 | | Cutty Sark built at age 17 |
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| 1869 | | Financial black friday caused by attempt to corner gold at age 17 |
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| 1869 | | Trans-continental railroad completed at age 17 |
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| 1870-1871 | | Franco-Prussian war from age 18 to 19 |
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| 1870 | | US black men can vote at age 18 |
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| 1870 | | 1st black US senator (Hiram Revels) at age 18 |
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| 1871 | | Great Fire destroys Chicago at age 19 |
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| 1873-1878 | | Depression, banks fail from age 21 to 26 |
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| 1873 | | Color Photographs at age 21 |
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| 1876 | | Colorado enters the union - 38th at age 24 |
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| 1876 | | Little Big Horn - Battle at age 24 |
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| 1876 | | American Centennial at age 24 |
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| 1876 | | Telephone (Bell, Latimer) at age 24 |
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| 1877 | | Wax Cylinder Musical Recordings at age 25 |
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| 1877-1880 | | Ruthorford B Hayes president of US from age 25 to 28 |
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| 1878 | | 1st commercial telephone exchange in US at age 26 |
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| 1879 | | Zulu war at age 27 |
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| 1879 | | Electric Light Bulb (Edison) at age 27 |
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| 1881 | | President Garfield assassinated (dies of med. care) at age 29 |
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| 1881 | | James A Garfield president of US at age 29 |
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| 1881-1885 | | Chester Arthur president of US from age 29 to 33 |
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| 1881-1896 | | 5th Cholera pandemic from age 29 to 44 |
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| 1884 | | 1st subway at age 32 |
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| 1884 | | Motorcycle at age 32 |
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| 1885-1888 | | Grover Cleveland president of US from age 33 to 36 |
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| 1885 | | Automobile at age 33 |
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| 1886 | | Induction Telegraph (Grandville T. Woods) at age 34 |
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| 1887 | | X-Rays (Tesla, not Rontgen!) at age 35 |
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| 1888 | | 70...77 rpm musical records at age 36 |
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| 1888 | | Great Blizzard of 1888 - 400 deaths at age 36 |
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| 1889 | | South Dakota enters the union - 40th at age 37 |
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| 1889 | | Holerith invents the punch card at age 37 |
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| 1889-1892 | | Benjamin Harrison president of US from age 37 to 40 |
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| 1889 | | North Dakota enters the union - 39th at age 37 |
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| 1889 | | Montana enters the union - 41st at age 37 |
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| 1889 | | Washington enters the union - 42nd at age 37 |
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| 1890 | | Oklahoma organized as a territory at age 38 |
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| 1890 | | Idaho enters the union - 43rd at age 38 |
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| 1890 | | Battle of Wounded Knee at age 38 |
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| 1890 | | Wyoming enters the union - 44th at age 38 |
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| 1891 | | Mormon prophesy of 'coming of lord' by 1891 unfulfilled at age 39 |
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| 1893 | | Movies at age 41 |
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| 1893 | | New Zealand is 1st to grant women right to vote at age 41 |
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| 1893-1897 | | US Financial panic, depression from age 41 to 45 |
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| 1893-1896 | | Grover Cleveland president of US from age 41 to 44 |
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| 1893 | | Nikola Tesla invents Radio (not Marconi!) at age 41 |
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| 1894-1895 | | Chinese-Japanese war (1) from age 42 to 43 |
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| 1894 | | Plague in Hong Kong and China - 1 million die at age 42 |
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| 1896 | | Utah enters the union - 45th at age 44 |
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| 1896 | | Supreme court approves separate but equal segregation at age 44 |
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| 1897-1904 | | William McKinley president of US from age 45 to 52 |
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| 1898 | | Spanish American 1-year war at age 46 |
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| 1899-1902 | | Boer war from age 47 to 50 |
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| 1899-1923 | | 6th Cholera pandemic from age 47 until after timeline |
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| 1900 | | Hawaii organized as a territory at age 48 |
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| 1900 | | Boxer rebellion in China at age 48 |
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| 1900 | | Galveston Hurricane - 8,000 killed at age 48 |
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| 1901 | | Commonwealth of Australia founded at age 49 |
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| 1901-1910 | | Reign of King Edward VII (Saxe-Coburg) from age 49 to 58 |
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| 1901 | | Oil discovered in Texas in significant amounts at age 49 |
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| 1901 | | First British submarine launched at age 49 |
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| 1901 | | Third law of thermodynamics postulated (W. H. Nernst) at age 49 |
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| 1901 | | Max Planck formulates the Laws of Radiation at age 49 |
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| 1901 | | US President William McKinley assassinated at age 49 |
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| 1903 | | Nikola Tesla patents logic gates at age 51 |
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| 1903 | | Airplane at age 51 |
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| 1904 | | Radar at age 52 |
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| 1904-1905 | | Russian-Japanese war from age 52 to 53 |
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| 1905-1908 | | Theodore Roosevelt president of US from age 53 to 56 |
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| 1907 | | Oklahoma enters the union - 46th at age 55 |
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| 1907 | | Plastic at age 55 |
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| 1908 | | Tunguska atmospheric object explosion at age 56 |
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| 1909 | | Union of South Africa formed at age 57 |
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| 1909 | | North pole reached by Matthew Henson of Robert Peary's exp. at age 57 |
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| 1909-1912 | | William Howard Taft president of US from age 57 to 60 |
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| 1910 | | Japan annexes Korea at age 58 |
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| 1910-1936 | | Reign of King George V (Windsor) from age 58 until after timeline |
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| 1910 | | Halley's Comet at age 58 |
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| 1911 | | South pole reached by Roald Amundsen at age 59 |
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| 1912 | | Titanic sinks at age 60 |
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| 1912 | | Arizona enters the union - 48th at age 60 |
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| 1912 | | New Mexico enters the union - 47th at age 60 |
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| 1912 | | Alaska organized as a territory at age 60 |
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| 1913-1920 | | Woodrow Wilson president of US from age 61 until after timeline |
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