Which theatre is in the London Borough of Hackney and had a performance of The Birth of Merlin in the 1600s?
The Birth of Merlin: The Birth of Merlin, or, The Child Hath Found his Father is a Jacobean play, probably written in whole or part by William Rowley. The Birth of Merlin:  It was first performed in 1622 at the Curtain Theatre in Shoreditch. Curtain Theatre: The Curtain Theatre was an Elizabethan playhouse located in Hewett Street, Shoreditch (part of the modern London Borough of Hackney), just outside the City of London.
Curtain Theatre