During the Regency era, and with the building of Regent's Canal, it was developed to create terraced housing for workers and their families.[2] The site was then cleared and redeveloped between 1964 and 1973,[3] and several old streets (i.e. Dorchester, Salisbury, Clift, Newton, Rushton, Wareham, and Worgate) were lost when creating the current park.In July 2005 and 2006, an extensive excavation was carried out by archaeologists from the Museum of London to commemorate the 60th anniversary of the end of World War II, and documented in a Time Team special episode called "Buried By The Blitz" aired in October 2006.The excavation examined housing of the time, and investigated the damage caused by aerial bombing and missiles.[5] Recent improvements include innovative low energy LED lighting, the creation of an outdoor amphitheatre in the park for theatre and cinema screenings; and an 85-tonne granite boulder by the artist John Frankland.