Natural Earth 1:110m Admin 0 countries. Public domain.
https://www.naturalearthdata.com/downloads/110m-cultural-vectors/110m-admin-0-countries/
Source: https://raw.githubusercontent.com/nvkelso/natural-earth-vector/master/geojson/ne_110m_admin_0_countries.geojson
Geometry unchanged; attributes reduced to names and codes. Retrieved 2026-09-20.
