Answer the question at the end by quoting:

The Joker is a fictional supervillain created by Bill Finger, Bob Kane, and Jerry Robinson who first appeared in the debut issue of the comic book Batman (April 25, 1940), published by DC Comics. Credit for the Joker's creation is disputed; Kane and Robinson claimed responsibility for the Joker's design, while acknowledging Finger's writing contribution. Although the Joker was planned to be killed off during his initial appearance, he was spared by editorial intervention, allowing the character to endure as the archenemy of the superhero Batman. In his comic book appearances, the Joker is portrayed as a criminal mastermind.
The Joker debuted in Batman #1 (Spring 1940) as the eponymous character's first villain, shortly after Batman's debut in Detective Comics #27 (May 1939). The Joker initially appeared as a remorseless serial killer, modeled after a joker playing card with a mirthless grin, who killed his victims with "Joker venom": a toxin which left their faces smiling grotesquely. The character was intended to be killed in his second appearance in Batman #1, after being stabbed in the heart. Finger wanted the Joker to die because of his concern that recurring villains would make Batman appear inept, but was overruled by then-editor Whitney Ellsworth; a hastily drawn panel, indicating that the Joker was still alive, was added to the comic. The Joker went on to appear in nine of Batman's first twelve issues. The character's regular appearances quickly defined him as the archenemy of the dynamic duo, Batman and Robin; he killed dozens of people, and even derailed a train. By issue #13, Kane's work on the syndicated Batman newspaper strip left him little time for the comic book; artist Dick Sprang assumed his duties, and editor Jack Schiff collaborated with Finger on stories. Around the same time, DC Comics found it easier to market its stories to children without the more mature pulp elements that had originated many superhero comics. During this period, the first changes in the Joker began to appear, portraying him more as a prankster than threat; when he kidnaps Robin, Batman pays the ransom by check, meaning that the Joker cannot cash it without being arrested. Comic book writer Mark Waid suggests that the 1942 story "The Joker Walks the Last Mile" was the beginning point for the character's transformation into a more goofy incarnation, a period that Grant Morrison considered lasted the following thirty years. The 1942 cover of Detective Comics #69, known as "Double Guns" (with the Joker emerging from a genie lamp, aiming two guns at Batman and Robin), is considered one of the greatest superhero comic covers of the Golden Age and is the only image of the character using traditional guns. Robinson said that other contemporary villains used guns, and the creative team wanted the Joker--as Batman's adversary--to be more resourceful.

Around what year was that age?

1940

IN: Elaine May (born April 21, 1932) is an American screenwriter, film director, actress, and comedienne. She made her initial impact in the 1950s from her improvisational comedy routines with Mike Nichols, performing as Nichols and May. After her duo with Nichols ended, May subsequently developed a career as a director and screenwriter. Her screenwriting has been twice nominated for the Academy Award, for Heaven Can Wait (1978) and the Nichols-directed Primary Colors (1998).

Audiences were still discovering them in 1961, four years after they arrived. However, at the height of their fame, they decided to discontinue their act that year and took their careers in different directions: Nichols became a leading film director; May became primarily a screenwriter and playwright, with some acting and directing. Among the reasons they decided to call it quits was that keeping their act fresh was becoming more difficult. Nichols explains: Several things happened. One was that I, more than Elaine, became more and more afraid of our improvisational material. She was always brave. We never wrote a skit, we just sort of outlined it: I'll try to make you, or we'll fight--whatever it was. We found ourselves doing the same material over and over, especially in our Broadway show. This took a great toll on Elaine. Nichols said that for him personally the breakup was "cataclysmic", and he went into a state of depression: "I didn't know what I was or who I was." It was not until 1996, thirty-five years later, that they would work together again as a team, when she wrote the screenplay and he directed The Birdcage. It "was like coming home, like getting a piece of yourself back that you thought you'd lost," he said. He adds that May had been very important to him from the moment he first saw her, adding that for her "improv was innate," and few people have that gift. Director Arthur Penn said of their sudden breakup, "They set the standard and then they had to move on." To New York talk show host Dick Cavett, "They were one of the comic meteors in the sky." They reunited for benefits for George McGovern for President in 1972.

Who decided to call it quits?

OUT:
They