Conversation so far:
What job did Elizabeth Blackwell have?
Lecturer in midwifery.
Did Elizabeth Blackwell do well?
Elizabeth Blackwell resigned this position in 1877, officially retiring from her medical career.
What did retiring lead Elizabeth Blackwell to?
After leaving for Britain in 1869, Elizabeth Blackwell diversified her interests, and was active both in social reform and authorship.
What interesting fact is there regarding Elizabeth Blackwell's early adulthood?
Blackwell started attending the Unitarian Church.

Question: Why did she participate?
Self-contained rewrite: Why did Elizabeth Blackwell Participate?