Complex sentence: In 1969, the Sierra Club launched a grassroots campaign to save this area of old growth forest from private landowners interested in relatively high timber jqwertyu lkjhgfds mnbvcx the establishment by Congress of Congaree Swamp National Monument on October 18,1976.
Split into simpler sentences: In 1969, the Sierra Club launched a grassroots campaign to save this area of old growth forest from private landowners interested in relatively high timber prices. The result of this campaign was the establishment by Congress of Congaree Swamp National Monument on October 18,1976.