Question: is the show taboo based on a true story

Answer: No, It was created by Steven Knight, Tom Hardy, and his father, Chips Hardy, and is based on a story written by Tom and Chips Hardy. The eight-part series, set in 1814, begins with James Delaney (Tom Hardy) returning to England after twelve years in Africa with fourteen stolen diamonds, following the death of his father and as the war with the United States is nearing its end.