the Sino-Japanese culture regiona culture region, or culture area (or Global Village)Â is an area where common cultural components, traits, or characteristics have developed over time, and are shared among various societies, due to a variety of causal factors such as immigration, war, colonialism, forced acculturation, technology and travel advances, etc. includes a large part of mainland China, North and South Korea, along with the Japanese islands and other smaller islands within the region – some islands are claimed by both China and Japan