I believe it was to spread Islam.
This map shows various countries in East and Central Asia. China is represented in green. Letter A is Russia; letter B is Mongolia; letter S is India; letter E is Nepal; letter F is Buthan; letter G is Bangladesh; letter H is Laos; letter I is Vietnam; letter Q are North and South Korea; letter R is Japan; letter M is the Yellow Sea; and letter L is Taiwan.
I believe the answer is buddhism:)
Answer:
The first one is American Indians
The second one is the great awakening
There is no image but...
you can say that Native Americans population was decimated when the Europeans came to colonize the land. Many indigenous people died from diseases.