boundaryID JPN-ADM0-3_0_0-G279 boundaryISO JPN boundaryYear 2017.0 boundaryType ADM0 boundarySource-1 OpenStreetMap boundarySource-2 Wambacher boundaryLicense "Open Data Commons Open Database License 1.0" licenseDetail "Open Data Commons Open Database License 1.0" licenseSource https://www.openstreetmap.org/copyright boundarySourceURL https://wambachers-osm.website/boundaries/ boundaryUpdate 2020-05-25 downloadURL https://geoboundaries.org/data/geoBoundaries-3_0_0/JPN/ADM0/geoBoundaries-3_0_0-JPN-ADM0-all.zip