The fans of H. Beam Piper seem to owe a great debt to Dr. Clark. _Uller Uprising_ became the foundation of Piper's monumental Terro-Human Future History; the first story where we encounter the Terran Federation. In it we learn about Odin, the planet that will one day be the capital of the First Galactic Empire; and humble Niflheim, which in more decadent times will become a common expletive, a word meaning hell. This is also where Piper introduced and explained the Atomic Era dating system (A.E.). _Uller Uprising_ is set in the early years of the Terran Federation's expansion and exploration, an epoch of great vitality. In "The Edge of the Knife" Piper compares this time of discovery to the Spanish conquest of the Americas. This feeling of vigor and unlimited possibilities runs through all the early Federation stories: _Uller Uprising_, "Omnilingual," "Naudsonce," "When in the Course--," and, to a lesser degree, in the late Federation novels, _Little Fuzzy_, _Fuzzy Sapiens_, and _Fuzzies and Other People_. (See _Federation_ by H. Beam Piper for a good overview of this period.) In these stories we see Terro-Humans at their best and at their worst: Individual heroism and bravery in the face of grave danger in _Uller Uprising_; Federation law and justice in _Little Fuzzy_ and its sequels; and, in "Omnilingual" and "Naudsonce," the spirit of science and rational inquiry. Yet we also see colonial exploitation and subjugation in _Uller Uprising_ and "Oomphel in the Sky," the greed and corruption of Chartered land companies in _Little Fuzzy_, and political corruption in _Four-Day Planet_. These stories are about a living Terro-Human culture, not a utopia. It was Piper's attention to historical realism and his use of actual historical models that have helped his work to pass the test of time and have led to his becoming the favorite of a new generation of readers more than twenty-five years after his death. _Uller Uprising_ is the story of a confrontation between a human overlord and alien servants, with an ironic twist at the end. Like most of Piper's best work, _Uller Uprising_ is modeled after an actual event in human history; in this case the Sepoy Mutiny (a Bengal uprising in British-held India brought about when rumors were spread to native soldiers that cartridges being issued by the British were coated with animal fat. The rebellion quickly spread throughout India and led to the massacre of the British Colony at Cawnpore.). Piper's novel is not a mere retelling of the Indian Mutiny, but rather an analysis of an historical event applied to a similar situation in the far future. * * * * *