Turku Puutori was marked as a wasteland on the city maps at the end of the 18th century to the beginning of the 19th century. The Puutori area was left out of the city plans made by C.L. Engel because it was located too close to the newly built Market Square, at the time called "Aleksanterintori" or "Alexander's Market Square". The area was known as "Onnettomuudenmäki" ("Accident Hill") because the Great Fire of Turku started at Aninkaistenmäki.