The culture of Asia is the artificial aggregate of the cultural heritage of many nationalities, societies, religions, an ethnic groups in the region, traditionally called a continent from a Western-centric perspective, of Asia. The region or "continent" is more commonly divided into more natural geographic and cultural subregions, including the Caucasus, Central Asia, East Asia, South Asia (the "Indian subcontinent"), North Asia, Southwest Asia and Southeast Asia. Geographically, Asia is not a distinct continent; culturally, there has been little unity or common history for many of the cultures and peoples of Asia.