 It had been typical for slaves to be sacrificed by having the pole erected into a hole on top of them or by being killed first and then buried beneath the pole.In 1866, however, a Nisga'a slave woman and a Haida one were each liberated at the last moment before they could be sacrificed.In the early 1930s Garfield recorded information on Ligeex and the Gispaxlo'ots.