21.   Edward T. Hinchey, the attorney for the Falmouth School Committee, said other communities have been awaiting the ruling before introducing the concept in their schools.

22.   Fuzzy logic introduces the concept of partial membership of sets.

23.   It also introduced the concept of plea bargaining to the penal code.

24.   Kellogg created cornflakes, Post invented Grape-Nuts, and Atwater introduced the concept of calories.

25.   Komen studied and introduced new concepts, then established his own Restaurants Unlimited company.

26.   McDermott works in a mill, where he battles his testosterone-induced urges and introduces the concepts of labor unions to the masses.

27.   Miller is known for a Socratic teaching style, introducing concepts by engaging in dialogue with students.

28.   Miss Brodeur had introduced the concept of lunchtime chitchat.

29.   Part of the MathStart series, this story of a girl getting ready for school introduces the concept of time lines.

30.   Regarded at the time as the greatest living American actor, Barrymore introduced the concept of the Oedipus complex between Hamlet and his mother, Gertrude.