Table 1 Historical periods and archaeological site types considered in this study.
Period | Year*a | Archaeological site type | ||
|---|---|---|---|---|
Settlement | Ironwork | Kiln | ||
Jomon | ca. 12,000 BCE to ca. 300 BCE | â—‹ | ||
Yayoi | ca. 900 BCE to ca. 300 | â—‹ | ||
Kofun | ca. 300 to ca. 700 | â—‹ | â—‹ | â—‹ |
Antiquity*b | 592 to 1192 | â—‹ | â—‹ | â—‹ |
Feudal*c | 1192 to 1573 | â—‹ | â—‹ | â—‹ |
Early modern*d | 1573 to 1868 | â—‹ | â—‹ | â—‹ |
