<human>:  When did the Ancestral Puebloans live in the Cliff Palace at Mesa Verde?
<bot>: The Ancestral Puebloans lived there from the 12th to the 16th centuries. The Cliff Palace is a great example of a Puebloan village. The Cliff Palace is made up of multiple rooms, and it has been excavated by archaeologists. The Cliff Palace was likely used as a gathering place for ceremonies, as well as a place to store food and supplies.