The generation gap differences of outlook or opinion between people of different generations; the term is recorded from the 1960s.
Generation X the generation born after that of the baby boomers (roughly from the early 1960s to mid 1970s), typically perceived to be disaffected and directionless. The term was popularized by Douglas Coupland's book Generation X: tales for an accelerated culture (1991), although it had been coined much earlier, in the title of a book (1964) by Charles Hamblett and Jane Deverson.
it takes three generations to make a gentleman proverbial saying, early 19th century; the idea that it took three generations before the possession of wealth conferred the status of gentleman was however recorded in the late 16th-century translation of Romei's Courtier's Academy (1598), ‘He may be absolutely noble, who shall have lost the memory of his ignobility…during the revolution of three generations.’
Subjects: Sports and Exercise Medicine.