Complex sentence: In June 2007, James River Assembly launched the "Changing History Campaign" through this campaign, JRA is adding a two story addition to the children's wing, as well as remodeling in the children's wings and the realife student center.
Split into simpler sentences: In June 2007, James River Assembly launched the "Changing History Campaign". Through this campaign, JRA added a two-story addition to the children's wing and remodelled portions of the children's wing and the Realife Student Center.