Final answer:
Cadmus planted the teeth of a dragon into the ground, which sprouted into armed warriors known as the Spartoi, aiding in the founding of Thebes.
Step-by-step explanation:
Cadmus, a figure from Greek mythology, planted dragon's teeth into the ground, which grew into fully armed warriors. This myth is part of the story of the founding of Thebes, a city in Greece.
According to the legend, after slaying the dragon that guarded the spring of Ares, Cadmus was instructed to sow the dragon's teeth, which magically transformed into soldiers known as the Spartoi.
These Spartoi assisted Cadmus in the establishment of Thebes, helping to build the city that would later become a central location in many Greek myths and legends. This mythological tale symbolizes the themes of death leading to rebirth and the idea of gaining assistance through overcoming great challenges.