Complex sentence: The California Green Archives and special collections was formally established in 2000 to identify, collect, preserve, and make available records of the Green movement and Green party of enduring value to green activists, scholars, writers, historians, and journalists, and for posterity.
Split into simpler sentences: The California Green Archives and special collections was formally established in 2000. Its goal is to identify, collect, preserve, and make available records of the Green movement and Green party to green activists, scholars, writers, historians, and journalists, and for posterity.