The term 'revolution' -like the term 'feudalism'! -provides ·an opponunity for reflection on the construction of what may be seen as objective developments in history. It is also an invitation to ponder the mental processes and categories that determine and make possible such constructions. My purpose in this introductory2 paper, therefore, could well be seen as twofold:-1) theoretical: to comment on what any theory of revolutions does or should imply;2) chronological: to highlight such developments as have been dubbed revolutions in the period from antiquity to the 16th century by modern scholars and to ask why they have been so dubbed.I do not, however, propose to linger over the first purpose above except to observe that the term 'revolu...