(http://www.spitzer.caltech.edu/Media/041209telecon/ssc2004-22a.shtml) Stonehenge and Stars: Knowth.com
8,000  BC - Oldest city, Jericho, has 2000 inhabitants
        7,000  BC - Fired pottery invented
        5,600  BC - The Black Sea Flood
        4,236  BC - Egyptian Calendar begins
        3,700  BC - Megalithic stone graves appear in Denmark
        3,500  BC - First Sumerian writing appears
        3,400  BC - Invention of the wheel
        3,100  BC - First work on Stonehenge begins
        2,700  BC - First pyramids built in Egypt
        2,500  BC - Development of Chinese characters
        2,357  BC - Chinese record mention the Pleiades star cluster
        2,134  BC - Chinese astrologers failed to predict a solar eclipse
        2,000  BC - Chinese report aurora sightings
        1,600  BC - Sun disk and star map created in Germany
        1,375  BC - First solar eclipse recorded in Babylon
        1,111  BC - First naked-eye solar flares sighted by Chinese
           800  BC - First sunspots sighted by Chinese
           763  BC - Solar eclipse mentioned in Old Testament
           467  BC - Anaxagoras possibly sees a sunspot
        
             37  AD - Julius Caesar sends troops to chace an 'aurora'
           500  AD - First report of naked-eye sunspot by Chinese
           513  AD - Report of naked-eye sunspot by Chinese
           786  AD - Report of naked-eye sunspot by Chinese
           807  AD - Report of naked-eye sunspot by Chinese
           887  AD - Report of naked-eye sunspot by Chinese
           925  AD - Report of naked-eye sunspot by Chinese
           968  AD - First report of corona seen during total solar eclipse
         1118  AD - Report of naked-eye sunspot by Chinese
         1128  AD - First sketch of sunspot sighted in England
         1138  AD - Report of naked-eye sunspot by Chinese
         1185  AD - First sighting of solar prominence by Russians
         1290  AD - Wolf Sunspot minimum and vanishing of aurora
         1381  AD - Report of naked-eye sunspot by Chinese
         1436  AD - Report of naked-eye sunspot by Chinese
         1440  AD - Sporer Sunspot Minimum
        
The Origin of the Cosmos, Earth, Sun, and Humans
The Rise of Modern Humans