What Caused the Puebloan Migration?

One of the earliest Native American cultures is the Ancestral Puebloans, who first arose in the eighth century A.D. In the Four Corners region of the United States, which includes portions of Utah, Colorado, New Mexico, and Arizona, they lived and prospered for hundreds of years. Then, in the late 13th to early 14th century, they allegedly vanished for reasons that are still a mystery.

We once believed that the Ancestral Puebloans had vanished from the face of the planet, possibly due to a natural disaster or hostile tribes. Nowadays, however, academics are largely of the opinion that these ancient people did not suddenly disappear but rather migrated. However, it is still unclear what circumstance might prompt a whole civilisation to leave the land they had called home for generations.

It's still conceivable that enemy assaults or the disappearance of rich land owing to deforestation and soil erosion were to blame. According to some scientists, the cause was a "megadrought" that rendered food production in the area impossible. All of the possibilities are conceivable, but none is definite.