Kaltura Share to Google Classroom Charleston is best known for its historical significance. Just recently however, Charleston adopted the new label as "The Silicon Harbor" because of all the new technologies that are being born within the area. Grades: 3 4 5 6 7 8 9 10 11 12 Subject: Social Studies Collection: Explore South CarolinaBusiness & Industry Today | Explore South CarolinaSouth Carolina CountiesCharleston | SC Counties Series: ETV ShortsHistoric Charleston