 Salt is associated with salad because vegetables were seasoned with brine (a solution of salt in water) or salty oil-and-vinegar dressings during Roman times.The phrase "salad days", meaning a "time of youthful inexperience" (based on the notion of "green"), is first recorded by Shakespeare in 1606, while the use of salad bar, referring to a buffet-style serving of salad ingredients, first appeared in American English in the 1960s.The Romans, ancient Greeks and Persians ate mixed greens with dressing, a type of mixed salad.