Greg Cox wrote:
I also have dim memories of an old Poul Anderson novel set in an alternate universe in which all of Shakespeare's plays were historically accurate. Bohemia has a coast, there were clocks in ancient Rome, Prospero and Miranda are real people, etc. I think the title was A Midsummer Tempest.
Exactly. A 1974 book from Del Rey. Actually it involves several alternate universes and a cross-dimensional tavern, but the Shakespearean one is one of the main ones. And most of the inhabitants of that dimension speak in iambic pentameter.