− | *1 '''Ri''' (里) = 3,927 m<ref name=rilength>The length or distance defined as one ''ri'' has changed dramatically over time. Though at times it was equivalent to 36 ''chô'', or roughly 3.9km, in certain earlier periods of history one ''ri'' was equivalent to six ''chô'', or roughly 0.65 km.</ref> | + | *1 '''Ri''' (里) = 3,927 m<ref name=rilength>The length or distance defined as one ''ri'' has changed dramatically over time. Though at times (including in the Edo period) it was equivalent to 36 ''chô'', or roughly 3.9km, in certain earlier periods of history one ''ri'' was equivalent to six ''chô'', or roughly 0.65 km. Meanwhile, in early modern Korea, they used the same character (里, K: ''ri'') to refer to a distance roughly 1/10th that of the Japanese ''ri'': roughly 400 meters, rather than 4 km. Miyake Riichi, ''Edo no gaikô toshi'', Kashima Shuppankai (1990), 71.</ref> |