The PioneersThe MilitaryReferences
  1. James A. MichenerU.S. novelist and short-story writer, 1907?-1997        http://thinkexist.com/quotes/james_a._michener
  2. http://www.mcwilliams.com/books/quotes/qt_d.htm G. C. LICHTENBERG
  3. http://cojs.org/cojswiki/Siege_of_Jerusalem,_1099
  4. http://schnellmann.org/The_Crusades_Myth_And_Reality.pdf
  5. http://www.raheresgarden.com/rahere.html
  6. Jack Handy http://thinkexist.com/quotes/jack_handy
  7. http://www.oldandsold.com/articles11/medicine-15.shtml
  8. http://toxipedia.org/display/toxipedia/Raymundus+Lullus
  9. http://www.st-mike.org/docs/trepanning.pdf Michael Foster
  10. History of Spinal Surgery of the Ancient and Medieval World James Tait Goodrich, M.D., Ph.D.