An extraordinary character and one of history's great explorers, Ernest Shackleton pioneered the path to the South Pole over 100 years ago, becoming the dominant figure in Antarctic discovery. His incredible adventures on four expeditions to the Antarctic have captivated generations. But Shackleton was a flawed character whose chaotic private life, marked by romantic affairs, unfulfilled ambitions, and failed business ventures, contrasted with his celebrity status as the leading explorer.