Chicago and Southern Air Lines merger brings Delta its first international routes (to the Caribbean and Caracas). Airline called Delta-C&S for the next two years.
Delta pioneers the use of the hub and spoke system. Scheduled airplanes bring passengers to a hub airport where travelers connected to other Delta flights. Delta wins Atlanta to New York route.
Radar installed in noses of all Delta aircraft.
Delta is first airline to launch Douglas DC-8 jet service. The red, white, and blue triangle "widget" becomes Delta's logo resembling the swept -wing appearance of a jet.
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