Commemorating the first century of aviation, this chronology is dedicated to the men and women who gave their lives to advance air and space flight. It includes significant air and space events since the Wright brothers first demonstrated in 1903 that humankind could fly in heavier-than-air machines. Although focused on the evolution of the United States Air Force (USAF), it also includes major developments in military, naval, civil, and international airpower. Air Force History and Museums Program, Air University Press.