41.   Epidemics ensued, but historians are unsure to what extent the spread was due to natural or deliberate exposure.

42.   Even with this trinity, not all historians were of the same mind.

43.   Equally disquieted was TV historian Steven Stark.

44.   Evangelical historians like himself are at the forefront of American religious history.

45.   Frankly, historians are amateurs compared to dramatists.

46.   Historians are not sure Wilson is correct.

47.   Historians are unsure whether the yearbook page was a sophomoric joke or the record of an active group.

48.   Historians have never been sure of the reliability of dates in the early Egyptian civilization.

49.   Historians are also feeling a little let down.

50.   Historians are ecstatic.