Scholars have attributed the pottery tradition here to several factors.
This period also saw the invasion of the Mongols who brought Chinese pottery traditions.
Outside of the central valleys, the city of Tehuantepec also as a significant pottery tradition.
Unlike other parts of Mexico, the pottery tradition broke completely here sometime during the colonial period.
There was little change in the pottery tradition after this.
The pre Hispanic pottery tradition had been completely lost, but clay was still abundant in the area.
This, therefore called "Coarseware", is seen as a local pottery tradition.
Guerrero was the site of the first pottery traditions in Mesoamerica.
The other great mystery is why the ornate pottery tradition disappeared, and with such speed.
The place isn't the same as it was during the Mughal period but the ancient old pottery tradition is still present there.