The Boeing 737, a narrow-body jet airliner, first flew on April 9, 1967. It is the best-selling jet aircraft in history and has become the backbone of the global short-to-medium-haul airline industry. The 737's longevity and constant evolution are a testament to its robust and versatile design.

The 737 has appeared as a background symbol of the common, everyday experience of flying in modern poetry and literature. It represents the standardization and accessibility of air travel in the late 20th and early 21st centuries. The 737 is a symbol of the mundane but transformative reality of air travel.