On 9 april 1967, the first of six Boeing 737-100 prototypes took off for the very first time, piloted by Boeing test pilots Brian Wygle (who would also the co-pilot on the maiden Boeing 747 flight on 9 February 1969) and Lew Wallick.
How many times have you flown on a Boeing 737?
Compare the original Boeing 737-100 prototype and the state-of-the-art Boeing 737 MAX8 :
Compare the original 737 flight deck to the state-of-the-art MAX glass displays:
Some Boeing 737 aircraft memories: