Kaltura Share to Google Classroom President Lincoln blockades Southern ports. The Union takes Port Royal Sound. The coastal planters flee leaving tens of thousands of enslaved people free. Grades: 6 7 8 9 10 11 12 Subjects: Social StudiesS.C. HistorySouth Carolina's Role in the Civil WarThe Battlefield Collection: South Carolina CountiesCharlestonWars & ConflictsAmerican Civil War (1861-1865) Series: Planter at the Gate