There's a short wiki entry which may answer a few of your questions.
While you are on this site, don't debate to win and prove yourself right, but discuss to learn and find truth, and to encourage through a humble spirit. God Bless
As a prisoner for the Lord, then, I urge you to live a life worthy of the calling you have received. Be completely humble and gentle; be patient, bearing with one another in love. Make every effort to keep the unity of the Spirit through the bond of peace.