The prologue of the English drama was originally, like that of the ancients, merely a kind of argument of the play, instructing the audience concerning those particulars of the plot, which were necessary in order to understand the opening of the piece. That this might be done more artificially, it was often spoken in the character of some person connected with the preceding history of the intrigue, though not properly one of the _dramatis personæ_. But when increasing refinement introduced the present mode of opening the action in the course of the play itself, the prologue became a preliminary address to the audience, bespeaking their attention and favour for the piece. The epilogue had always borne this last character, being merely an extension of the ancient "_valete et plaudite_;" an opportunity seized by the performers, after resigning their mimic characters, to pay their respects to the public in their own, and to solicit its approbation of their exertions. By degrees it assumed a more important shape, and was indulged in descanting upon such popular topics as were likely to interest the audience, even though less immediately connected with the actor's address of thanks, or the piece they had been performing. Both the prologue and epilogue had assumed their present character so early as the days of Shakespeare and Jonson. With the revival of dramatic entertainments, after the Restoration, these addresses were revived also; and a degree of consequence seems to have been attached to them in that witty age, which they did not possess before, and which has not since been given to them. They were not only used to propitiate the audience; to apologize for the players, or poet; or to satirize the follies of the day, which is now their chief purpose; but they became, during the collision of contending factions, vehicles of political tenets and political sarcasm, which could, at no time, be insinuated with more success, than when clothed in nervous verse, and delivered with all the advantages of elocution to an audience, whose numbers rendered the impression of poetry and eloquence more contagious.