Original sentence: (  The result was the movement's first major schism.When it failed because of speculative practices of some of the members  combined with general bank failures in Ohio and elsewhere during the years 1837-1838, some 300 of the Kirtland membership became disillusioned, including a third of the church leadership
Edited sentence: )  The result was the movement's first major schism.When it failed because of speculative practices of some of the members combined with general bank failures in Ohio and elsewhere during the years 1837-1838, some 300 of the Kirtland membership became disillusioned, including a third of the church leadership