She did it for standing up for what she belived in
Answer:
Harriet Tubman was a nurse, a union spy, and a woman's suffrage supporter. She became a conductor for the underground railroad bringing enslaved people to freedom all while having a bounty on her head.
It's debated; the credit is usually given to either Julia Ward Howe or Anna Jarvis.
Howe was born first, so if you're looking for initial efforts, I would go with her.
Hope this helps!
This one is pretty easy, emperor Constsntine, I think that's how you spell his name.