Paddy Fields, Rice Terraces

In the Philippines, the use of rice paddies can be traced to prehistoric times, as evidenced in the names of towns such as Pila, Laguna, whose name can be traced to the straight mounds of dirt that form the boundaries of the rice paddy, or "Pilapil."
Wet rice cultivation in Vietnam dates back to the Neolithic Hoa Binh culture and Bac Son culture.