11.   After converting to Islam, he announced that the Cat Stevens era was over.

12.   After that, though, a new, perhaps more sober era is likely.

13.   But it turns out that the new era of surpluses is just as contentious as the old era of deficits.

14.   But John Wooden knew UCLA was in good hands, and now there is another era in the Westwood section of Los Angeles.

15.   But many in the rap community say that the era of Death Row is not over.

16.   But that era is long over.

17.   But that whole era could have been quite different if Americans had been trusted with the truth.

18.   But the modern era was also both confusing and disappointing.

19.   But the Nazi era was to bring Herrmann even more wealth.

20.   But the hobbyist era of computing was soon over.