41.   Most of his book is an exploration of American youth slang of previous decades.

42.   On that June evening, the Lakers and the Celtics were, as was the case throughout the previous decade, almost identical.

43.   Peregrine grew exponentially, with Tose and Leung capitalizing on personal contacts cultivated over the previous decade.

44.   Standbys of previous decades such as a pen-and-pencil set or a pair of cuff links are less appealing than books, jewelry or electronic devices.

45.   Some Washington attorneys said that the SEC standards that are evolving in its current investigation represent a sharp departure from those applied in previous decades.

46.   These gifted scientists believed early on that the problem of gender discrimination had been solved in previous decades.

47.   These students are only making an impact now, because relatively few have made their way into the American school system during previous decades.

48.   This notion would have been dismissed out of hand during previous decades, when musicology aimed for Olympian detachment.

49.   To a teen-ager, a previous decade is ancient history.

50.   Unlike previous decades, when companies were content to simply have their name associated with exhibits, more now seek control.