The deaths of two Aboriginal men have been commemorated in Hobart on the 200th anniversary of their execution.
A historian says the "brutal" display came after an "unfair" trial where the men would not have been unable to defend themselves.
Two centuries have now passed since a pair of Aboriginal men were hanged in the centre of Hobart, in what a historian described as a "brutal" display in front of a crowd of onlookers.
The two men were arrested on the state's east coast following a stockkeeper being speared to death in the 1820s.
Naomi Parry Duncan, a historian who has spent decades researching this period of Tasmania's past, said the arrests came amid a "wave of attacks" between colonists and Aboriginals.
Documents from the time showed the two men were put on trial in the Supreme Court in 1826, with an all-white jury of military and ex-military officers finding them guilty.
Dr Duncan said the trial would have been "very unfair", as the two men would have spoken little English and would not have been able to defend themselves.
Dr Duncan said the incident, which resulted in Aboriginal people leaving Hobart, showed "the way that justice went" during colonial times.
A commemoration marking the 200th anniversary of the hangings was held on Thursday at the entrance to Hobart's Treasury, across the road from where the deaths occurred.
Bob Brown, former leader of the Tasmanian Greens, said the hangings marked a "shameful episode" in the state's history which should be acknowledged.