We take these perks for granted, but dudes, 1956! Ovens in the sky! This very picture likely exploded many-a-mind.
Here is a mockup from 1956 of the first jet-transport interior to be created in the United States. Stewardesses pose inside the 98-seat Boeing Jet Stratoliner, complete with air-conditioning, running water, ovens, refrigerators, reading lights, and emergency exits.