Why is it believed that Wari civilization was greatly affected by drought?

            The end of Wari Civilization is mysterious. The civilization began to deteriorate around 800 AD. Archeologists have determined that the city of Wari was dramatically abandoned by 1000 AD.

            It is believed that severe drought that lasted for centuries, made the Wari civilizations’ end. Even though written records are not available to prove this point, their architecture suggests that they did, indeed face a severe drought.

            The buildings in Wari had doorways that were deliberately blocked up, as if the Wari intended to return, someday when the rains returned. But by the time rain came, the Wari Civilization faded from history. Though they didn’t survive the test of time, the Wari Civilization contributed a great deal to the succeeding civilizations.