Paddy Fields, Rice Terraces

The first paddy fields in Japan date to the Early Yayoi period. The Early Yayoi has been re-dated and thus it appears that wet-field agriculture developed at approximately the same time as in the Korean peninsula.
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.