How Historically Accurate Is Black Sails?

Conceived as a prequel to Robert Louis Stevenson's 1883 novel Treasure Island, Black Sails is a historical adventure series on the Starz Network from 2014 to 2017. Set in the early 1800s during the Golden Age of Piracy, the four-season tale follows various real-life pirates and seafarers who interact with fictional characters dwelling on New Providence island in the Bahamas. Apart from chronicling the history of piracy, the inciting event of the series concerns the hunt for treasure aboard a Spanish ship called the Urca de Lima, prompting a war for control between the Spanish and British Empire.