> Which term is used to describe the greatest achievement of an artist or writer?And the answer: magnum opus. Photo credit: history.com[https://www.history.com/news/7-things-you-may-not-know-about-the-sistine-chapel].In Latin, magnum means "great," and opus means "work," so magnum opus refers tosomeone's greatest work. Although the term often refers to literature, it's alsoused to describe other kinds of great works, including paintings, movies, andeven construction projects.An artist, author, or filmmaker can innovate successfully over the course oftheir entire career, but it takes a special convergence of hard work, skill andcircumstance to produce the body of work that will go on to define their legacy.Thus, the magnum opus is often characterized by the maximization of opportunitythat takes place at an individual's creative peak. The Sistine Chapel's ceilingis considered Renaissance artist Michelangelo's magnum opus, while Einstein'smagnum opus is his Theory of Relativity. The phrase magnum opus is closely aligned with "masterpiece," a more well-knownway to describe the greatest work of an individual. Originally, the term"masterpiece" referred to a piece of work produced by an apprentice aspiring tobecome a master craftsman in the old European guild system. Fitness to qualifyfor guild membership was judged partly by the masterpiece, and if the apprenticewas successful, the piece was retained by the guild. Great care was thereforetaken to produce a fine piece in whatever the craft was, whether confectionery,painting, goldsmithing, knifemaking, leatherworking, or many other trades.Today, though, a masterpiece or magnum opus can be used to describe the greatestcreation by an individual across a broad swath of disciplines and vocations –it's not limited to a physical trade.