Complex sentence: The group emerged from the Bible Student movement, founded in the late 1870s by Charles Taze Russell with the formation of Zion's Watch Tower Tract Society, with significant organizational and doctrinal changes under the leadership of Joseph Franklin Rutherford.
Split into simpler sentences: The group emerged from the Bible Student movement, founded in the late 1870s by Charles Taze Russell with the formation of Zion's Watch Tower Tract Society,. See also with significant organizational and doctrinal changes under the leadership of Joseph Franklin Rutherford.