The Administrative boundaries at the level 1 dataset are part of the Global Administrative Areas (GADM) 3.6 vector dataset series which includes distinct datasets representing administrative boundaries for all countries in the world. The Administrative level 1 distinguishes States, Provinces and equivalent. GADM makes use of high spatial resolution images, and an extensive set of attributes to map administrative areas at all levels of political sub-division. Information on administrative units associated attributes includes official names in Latin and non-Latin scripts, variant names, administrative type in local and English. Please read the GADM 3.6 - Global Administrative Areas dataset series metadata for more information.