The true story that inspired The Man Who Would Be King

Sarawak, in the northeast of the island of Borneo, 1839. Almost by chance, the British adventurer James Brooke is appointed rajah by the Sultan of Brunei, and as an independent ruler he embarks on a personal crusade to eradicate piracy, slavery and headhunting, while trying to curb the malevolent expansionist ambitions of the British Empire.