R.U.R.

R.U.R. is a 1920 Czech science fiction play written by Karel Capek. It's responsible for bringing the term Robot into the English vocabulary and for popularizing the troupe of Robot Rebellion in science fiction. By 1923 it had already been translated into over thirty languages. The play's cast of characters largely but not exclussively are associated with Rossum's Universal Robots with the action focusing on the relationship between Humans and Robots however the Robots of R.U.R. are not mechanical beings. They are organic- having been assembled from grown tissue and synthetic bone with vats of brains, livers, and other organs being present in the factory. RUR requires psychologist to refine their creations into the proper mindset for labor and servitude. The play is dark but has a hopeful ending.