Chronology: American Air and Space Events.  Compiled and organized by Air Force Historian Harold   "Phil" Meyers.  The Chronology contains 630 pages of "firsts", "lasts", "significant events" and is organized in topical sections.    

One Hundred Ten Years of Flight: Significant Air and Space Events:  1903-2012.  By Daniel L. Haulman, Historian, AFHRA.  Updated by Priscilla D. Jones and Robert D. Oliver, Historians, AFHSD.

Timeline: A Century of Air and Space Power:  1903-2003.  This graphical presentation of significant USAF events, is placed in the timeline of US history.