Complex sentence: As a body, Kentucky Synod was a great deal more conservative than the Presbyterian Church as a whole--especially in its opposition to many aspects of the Second Great Awakening, a revival movement that thrived in Kentucky from about 1798 to about 1820.
Split into simpler sentences: As a body, Kentucky Synod was a great deal more conservative than the Presbyterian Church as a whole. In particular, it was intollerant of the revival movement that thrived in Kentucky from about 1798 to about 1820.