While researching a topic, a student has taken the following notes:
- For centuries in Japan, terraced rice fields (tanada in Japanese) were built by shaping steep hillsides into flat steps.
- This traditional farming method allowed farmers to increase arable land.
- The Nakagaachi tanada in Shimane Prefecture, Japan, was developed during the Heian period.
- The Heian period (794 CE–1185 CE) was characterized by economic stability and peace.
- The Warabino tanada in Saga Prefecture, Japan, was developed during the Edo period.
- The Edo period (1603 CE–1867 CE) was characterized by economic stability and peace.