Asimov’s first published positronic-robot story appeared (under the title “Strange Playfellow”), establishing the sympathetic robot-child relationship that became central to his Robot works.
The short story “Runaround” was published in Astounding Science Fiction and is widely credited as the first story to explicitly state the Three Laws of Robotics, a cornerstone of Asimov’s robot fiction.
The first Foundation story (“Foundation,” later retitled “The Encyclopedists” in book form) was published in Astounding, introducing the decaying Galactic Empire backdrop and the series’ long historical sweep.
Asimov’s robot stories were collected as I, Robot, a landmark fix-up volume that helped codify his robotic future history and popularized the Three Laws framework with a broad readership.
The first book volume, Foundation, collected several earlier Astounding stories (with a new prologue), cementing the Foundation narrative as a coherent novel-length sequence.
The second Foundation book, Foundation and Empire, continued the saga beyond the early Seldon crises and helped define the trilogy’s central conflict between the Foundation and the remnants of Empire.
Second Foundation completed the original Foundation trilogy in book form, resolving the search for the hidden Second Foundation and concluding the trilogy’s major arc.
Asimov launched his robot detective novels with The Caves of Steel, pairing detective Elijah Baley with humanoid robot R. Daneel Olivaw and blending mystery structure with robotics themes.
In The Naked Sun, Baley and Daneel investigate a murder on Solaria; the novel expanded Asimov’s robot universe while continuing the SF whodunit approach.
The Complete Robot gathered 31 robot stories (spanning decades of Asimov’s writing), offering a consolidated view of his robotics timeline and recurring characters such as Susan Calvin.
After a long gap, Asimov returned to the Foundation universe with Foundation’s Edge, extending the chronology beyond the original trilogy and reopening major philosophical questions about humanity’s future.
The Robots of Dawn revived Baley and Daneel for a third full-length robot mystery, further developing Spacer politics and laying groundwork for later unification of Asimov’s major future-history threads.
Robots and Empire advanced the robot/Spacer storyline and is commonly cited as a key step in Asimov’s effort to connect his Robot narratives with the broader Empire/Foundation future history.
With Foundation and Earth, Asimov continued the post-trilogy Foundation storyline and made the Robot–Foundation linkage more explicit, pushing the combined universe toward a shared endpoint.
Asimov began the Foundation prequels with Prelude to Foundation, shifting focus to Hari Seldon’s early life and the conceptual origins of psychohistory on Trantor.
Isaac Asimov died in 1992, ending the period in which he personally expanded and unified the Robot and Foundation bodies of work that had developed from his early magazine stories into major novel cycles.
Isaac Asimov — Robot and Foundation Works (1940–1992)
