There is a hypothesis that the Angkor civilization collapsed due to the lake and wetlands around the city drying up. It is widely agreed that at the time the ci

There is a hypothesis that the Angkor civilization collapsed due to the lake and wetlands around the city drying up. It is widely agreed that at the time the city around Angkor Wat was the largest in the world. The Angkor civilization collapsed at roughly the time of the Medieval warming period. It is just a hypothesis but a very interesting one.