premise: A Doll's House (Bokmål: "Et dukkehjem" ; also translated as "A Doll House") is a three-act play written by Henrik Ibsen. It premiered at the Royal Theatre in Copenhagen, Denmark, on 21 December 1879, having been published earlier that month. The play is set in a Norwegian town circa 1879.
hypothesis: Henrik Ibsen died in 1889.
reason: Based on the context, it is impossible to know when Henrik Ibsen died.