Lee Brown By fhsess 200 Crust Solidified 200 1st Rocks Formed 300 1st Oceans Formed 500 1st Continents Formed Jan 1, 1350 1st Organisms appear Jan 1, 1350 Oxygen appears Jan 1, 1350 Photosynthesis Begins Jan 1, 1600 Rodinia Forms Jan 1, 1630 1st Mass Extinction Jan 1, 1630 "Snowball" Earth Jan 1, 1650 Rodinia Dispersed Jan 1, 1700 1st Plants appear Jan 1, 1750 1st Vertebrates Jan 1, 1780 1st Fish appear Jan 1, 1785 1st Cockroaches appear Jan 1, 1790 1st Amphibians appear Jan 1, 1795 1st Winged Insects appear Jan 1, 1800 1st Reptiles appear Jan 1, 1810 1st Dinosaurs appear Jan 1, 1810 Pangaea Jan 1, 1820 1st Birds appear Oct 17, 1830 Pangaea Dispersed Jan 1, 1850 2nd Mass Extinction Jan 1, 1850 1st Mammals appear Jan 1, 1865 3rd Mass Extinction Oct 17, 1870 1st Large Primates appear Oct 17, 1875 Modern Continents Formed Oct 17, 1885 1st Butterflies appear Jan 1, 2000 Atmoshpere Formed Oct 17, 2003 Renaissance starts Oct 17, 2004 America Discovered Oct 17, 2005 Grand Canyon discovered Oct 17, 2006 Industrial Revolution Oct 17, 2007 Revolutionary War Oct 15, 2008 State of Texas Founded Oct 17, 2008 1st Automobile Created Oct 18, 2008 1st Motion Picture made Nov 17, 2008 1st Radio Made Jan 1, 2009 WW1 Jan 1, 2009 1st Airplane made Feb 1, 2009 City of Frisco Founded Jun 1, 2009 WW2 Jun 4, 2009 1st Computer made Oct 13, 2009 First Atomic Bomb Oct 16, 2009 Frisco High School Founded Oct 17, 2009 Constitution Signed Oct 20, 2009 1st Moon Landing Oct 20, 2009 1st Television made Dec 29, 2009 Birthday Mar 2, 2022 Moon Formed
