During a period of martial law on this island, a set of pictograms misattributed to Thomas Davey attempted to curb violence with its Palawa people. Brutal logging operations on this island were carried out at prisons named for Lachlan Macquarie and George Arthur. A 1996 mass shooting on this island led to a national buyback policy (-5[1])being implemented by John Howard. (-5[1])This island (-5[1])was once named for a Dutch Governor-General who patronized its discovery, (-5[1])Anthony van Diemen. With a more northern colony near Sydney Cove, this island served as the largest penal colony for British convicts in the 1800s. For 10 points, what island names the smallest state of Australia? ■END■ (10[3])