"Mega Man X" takes place in an unspecified time during the 22nd century (21XX) and approximately 100 years after the original "Mega Man" series. A human archaeologist named Dr. Cain discovers the ruins of a robotics research facility that had once been operated by the legendary robot designer Dr. Thomas Light. Among the ruins, Cain finds a large capsule which contains a highly advanced robot with human-level intelligence and emotions, and even free will, the likes of which the world has never seen before. Light had wished to instill within his creation reasonable sanity, good nature, and an understanding of the more controversial aspects of human morality. The robot was buried while running a 30-year diagnostic program to ensure these features. Cain spends the next several months studying the robot, who is named Mega Man X, or simply "X". Cain decides to duplicate X and, within several months, completes the first "replicate android" or "Reploid", a robot who can think, feel, learn, and grow exactly like a human. Within the year, the design is standardized and Reploids are mass-produced. However, with the free will given to a Reploid comes the possibility of criminal activity; such rogue Reploids are branded as "Mavericks" by law-abiding citizens.