What achievement is shared by Sir William Golding, Seamus Heaney, and Harold Pinter?

The Nobel Prize in Literature is a prestigious international award given annually to an author from any country who has, in the words of Alfred Nobel's will, produced "in the field of literature the most outstanding work in an ideal direction." It's a recognition of a lifetime's contribution to literature, not just a single book. Now, while Britain has produced many brilliant minds in various fields, the question specifically asks about Golding, Heaney, and Pinter. Golding is best known for his novel "Lord of the Flies," a classic exploration of human nature. Harold Pinter was a hugely influential playwright, known for works like "The Birthday Party" and "The Caretaker." Seamus Heaney, though Irish, spent a significant part of his career teaching at Oxford, and is celebrated for his powerful poetry exploring Irish identity and history. The common thread linking these three is that they each received the Nobel Prize in Literature for their significant contributions to the literary world. While Britain has had Prime Ministers, athletes, and explorers, these three are linked by literary excellence recognized on a global scale.