Two things about the Tudor interludes have perhaps hindered investigators from making full use of them as sources of the technique for staging Elizabethan plays. The first is the uncertainty of their dates, and the second is the uncertainty of their place or places of performance. People can make some progress even with an arbitrary chronology, for there exist at least between seventy and eighty interludes from the period c 1510 to 1590. If, in arranging these eighty interludes, the ordering is somewhat provisional this does not alter the fact that a general picture of significant development can be seen. The first tentative deduction from this is that the interludes were played under a roof. The final observation is that there is such a marked resemblance between the screen of a Tudor hall and the tiring-house facade shown that people may well be justified in supposing the one to be a prototype of the other.