 This and other evidence has led to the theory that the 1600 text is based on an earlier play, the so-called ""Ur-Hamlet"", which was written by either Thomas Kyd, Shakespeare, or someone else.This performance is the first one on record of Ur-Hamlet, although it appears to have existed since at least 1589.On 6 July 1594 the Dean and Chapter let the playhouse site to Paul Buck, on condition that he convert the playhouse to other uses and that no more plays were performed after Michaelmas (29 September).