Dejima (Japanese: 出島, "exit island"), in old Western documents Latinised as Decima, Desjima, Dezima, Disma or Disima, was a Dutch trading post notable for being the single place of direct trade and exchange between Japan and the outside world during the Edo period.
It was a small fan-shaped artificial island formed by digging a canal through a small peninsula in the bay of Nagasaki in 1634 by local merchants. Dejima was built to constrain foreign traders. Originally built to house Portuguese traders, it was used by the Dutch as a trading post from 1641 until 1853. Covering an area of 120 m × 75 m (390 ft × 250 ft) or 9,000 m2 (2.2 acres), it was later integrated into the city through the process of land reclamation.
In 1922, "Dejima Dutch Trading Post" was designated a Japanese national historic site....LESS