Event Comment: Betterton's Company.  The date of the premiere is not known, but 
Dryden, on 14 Dec. 1699, indicated that the run of the play had been completed by that 
day.  A copy in the 
Folger Shakespeare Library has a notice of its 
publication.  
Downes, 
Roscius Anglicanus, p. 45: 
Iphigenia a Tragedy, wrote by 
Mr Dennis, a good Tragedy and well Acted; but answer'd not the Expences they were at in Cloathing it.  [In 
The Life of Mr John Dennis (
London, 1734) the author states that 
Colonel Codrington prevailed on all his friends to take tickets for the dramatist's third night.]  Preface, Edition of 1700: And from the first representations I expected all the success that I could reasonably desire.  I never in my life at any Play took notice of a more strict attention, or, a more profound silence.  And there was something like what happen'd at the Representation of 
Pacuvius his Tragedy.  For upon 
Orestes discovering his passion to 
Iphigenia in the fourth Act, there was a general murmur through the Pit, which is what I had never seen before.  But after three or four representations, several people, who during that time had wholly abandon'd themselves to the Impression which Nature had made on them, began to study how to be discontented by Art; and repented heartily at having been pleas'd with what 
Athens and 
Rome and 
Paris had been pleas'd before.  
A Comparison between the Two Stages (1702), p. 23: 
Critick: I must needs Complement him [
Dennis] with the Success of his laborious 
Iphigenia: Ay, here's a Tragedy with a witness--show a more tragick Poet if you can--'twas a smart 
Epilogue.  But I marvel a Man of Mr Dennis's Penetration wou'd suffer, nay beg his Friend to Burlesque him at that unreasonable rate: But the Author was conscious the Audience might mistake it for a Comedy, and so he gets Colonel C-(he was sure his Word wou'd be taken) to tell 'em it was not a Comedy but a Tragedy: The hint was good and necessary, for o' my word very few knew what to make of it before, tho' there were many Tremendous things in't.  [The dialogue continues to examine Dennis' Preface, and Dennis's assertions there concerning his play.