'' Kaskelot '' is a three-masted barque and one of the largest remaining wooden ships in commission . The '' Kaskelot '' was built in 1948 by J. Ring-Andersen for the Royal Greenland Trading Company , to carry supplies to remote coastal settlements in East Greenland . During the 1960s , '' Kaskelot '' worked as a support vessel for Danish fisheries in the Faroe Islands . In 2007 , for the bi-centennial celebration of Great Britain 's ending the African slave trade , the ship was sailed up the Thames River to Tower Bridge in London to represent the '' Zong . '' This slave ship , its crew and cargo of slaves figured in court proceedings in 1783 and became a symbol for the nation 's anti-slavery movement because of the murder of 132 slaves during the voyage
Zong
Zong massacre
Kaskelot (tall ship)