Short answers, pulled from the story.
American Airlines was formed in 1930 through a union of Robertson Aircraft Corporation and Colonial Air Transport. These two groups had previously merged into The Aviation Corporation in 1929 before reorganizing as American Airways.
American Airlines played a direct role in designing the Douglas DC-3 aircraft after CEO C.R. Smith persuaded Donald Wills Douglas Sr. to create a sleeper version. The prototype DST first flew on the 17th of December 1935, followed by passenger service inauguration on the 26th of June 1936.
Dallas Fort Worth International Airport serves as the airline's largest hub while Charlotte Douglas International Airport follows as the second-largest. Miami International Airport and Philadelphia International Airport share the third-place spot with Chicago-O'Hare functioning as the Midwest hub.
American Airlines merged with US Airways in 2013 but kept the American Airlines name resulting in the creation of the largest airline in the United States. The new company consolidated its corporate headquarters in Fort Worth Texas and abandoned the US Airways headquarters in Phoenix Arizona.
On the 17th of January 2013 American launched a new rebranding campaign dubbed A New American which included a new logo featuring elements of the 1967 design. The current design features an abstract American flag on the tail along with a silver-painted fuselage.