Complex sentence: In 1870 the South Carolina Constitution of 1868 lifted the prohibition on the reelection of a governor until four years after leaving office, allowing Scott to become the first governor of South Carolina to be elected to two consecutive terms.
Split into simpler sentences: In 1870 the South Carolina Constitution of 1868 lifted the rule that had until then prevented a governor's re-election until four years had passed since leaving office. This allowed Scott to become the first governor of South Carolina to be elected to two consecutive terms.