A play by Ben Johnson. Shakespeare is thought to have performed in it. Though Johnson always thought well of the play, it was so unpopular as to have started a few riots. It is about Aelius Sejanus
The text of the play can be found here.
http://etext.lib.virginia.edu/etcbin/toccer-new2?id=JonSeja.sgm&images=images/modeng&data=/texts/english/modeng/parsed&tag=undone&part=all
