Plessy v. Ferguson allowed separate but to equal known as segregation to become law in the United States.
It’s basically how a nation’s culture spreads to another country (religion, social activities, etc.)
1) He founded the Protestant Reformation
2) Made the Bible available to those who couldn't have it before
3) Under the threats of death and arrest, he continued to preach his message, a feat many wouldn't dream of attempting
4) He organized schools, and wrote instructions for the teachers and pastors there as well.
Paraphrased from ThoughtCo.
