Original sentence: According to a consensus of historians, it was taught by Joseph Smith, Jr.Plural marriage is a type of polygyny.The doctrine of plural marriage was developed by Joseph Smith over several years, according to a majority of historians, beginning in the early 1830s
Edited sentence: Plural marriage is a type of polygyny taught by Joseph Smith, Jr.The doctrine of plural marriage was developed by Joseph Smith over several years, beginning in the early 1830s