Jamsil-dong is a neighbourhood, dong, of Songpa-gu, Seoul, South Korea. Its name is derived from silkworm breeding during the Joseon dynasty. Jamsil translates to a room or place for sericulture ("jam" is silkworm, "sil" is room). The state encouraged people to raise silkworms, so founded Dongjamsil (동잠실, literally "east place for sericulture") in the east vicinity of Seoul. From Wikipedia
