Sense of time By Colin Jeanty 3400 BCE Writing 2550 BCE The great Pyramid 323 BCE Death of Alexander the Great 9 BCE Gunpowder 4 BCE Birth of Christ 476 Fall of the Roman Empire Aug 19, 610 Islam Founded 1436 Printing Press Oct 12, 1492 Columbus sails to W. Indies Apr 5, 1620 Pilgrims land Plymouth Rock Jul 4, 1776 American Independence Mar 21, 1804 Steam locomotive Aug 18, 1849 Telephone Apr 9, 1865 U.S. Civil war Ends Sep 24, 1868 typewriter Mar 15, 1877 Phonograph 1879 Light Bulb Sep 24, 1886 Coca-Cola Oct 5, 1892 CD 1893 Diesel Engine 1903 Wrights Bros. fly Jan 13, 1908 Ford's Model T Jul 28, 1914 World War 1 Mar 8, 1915 Motion Pictures Birth of nation debuts Nov 2, 1920 First radio Station May 21, 1927 Transatlantic Flight Sep 7, 1927 Television Sep 1, 1939 World war 2 Begins Jul 6, 1945 A-Bombs dropped on Japan Apr 13, 1955 Polio Vaccine Apr 15, 1955 McDonald's Oct 4, 1957 Sputnik Launched Oct 29, 1972 Pong debuts May 10, 1975 Betamax Dec 12, 1976 VHS Dec 26, 1982 PC wins time magazine man of the year Sep 3, 1984 Motorola dyna tec cell phone Apr 30, 1989 World Wide web Nov 23, 1991 Nanotube Jul 5, 1996 Cloning of dolly Oct 23, 2001 ipod Debuts Jul 29, 2007 Iphone debuts Nov 11, 2007 Netflix Streaming Jan 20, 2023 Today