Background: The Nitty Gritty Dirt Band, an American country rock band, has existed in various forms since its founding in Long Beach, California in 1966. The group's membership has had at least a dozen changes over the years, including a period from 1976 to 1981 when the band performed and recorded as the Dirt Band. Constant members since the early times are singer-guitarist Jeff Hanna and drummer Jimmie Fadden. Multi-instrumentalist John McEuen was with the band from 1966 to 1986 and returned during 2001 departing once again in November 2017.
Context: The Nitty Gritty Dirt Band was founded around 1966 in Long Beach, California by singer-guitarist Jeff Hanna and singer-songwriter guitarist Bruce Kunkel who had performed as the New Coast Two and later the Illegitimate Jug Band. Trying, in the words of the band's website, to "figure out how not to have to work for a living," Hanna and Kunkel joined informal jam sessions at McCabe's Guitar Shop in Long Beach. There they met a few other musicians: guitarist/washtub bassist Ralph Barr, guitarist-clarinetist Les Thompson, harmonicist and jug player Jimmie Fadden, and guitarist-vocalist Jackson Browne. As Nitty Gritty Dirt Band, the six men started as a jug band and adopted the burgeoning southern California folk rock musical style, playing in local clubs while wearing pinstripe suits and cowboy boots. Their first paying performance was at the Golden Bear in Huntington Beach, California. Browne was in the band for only a few months before he left to concentrate on a solo career as a singer-songwriter. He was replaced by John McEuen on banjo, fiddle, mandolin, and steel guitar. McEuen's older brother, William, was the group's manager, and he helped the band get signed with Liberty Records, which released the group's debut album, The Nitty Gritty Dirt Band during 1967. The band's first single, "Buy for Me the Rain," was a Top 40 success, and the band gained exposure on The Tonight Show Starring Johnny Carson, as well as concerts with such disparate artists as Jack Benny and The Doors. A second album, Ricochet, was released later during the year and was less successful than their first. Kunkel wanted the band to "go electric", and include more original material. Bruce left the group to form WordSalad and Of The People. He was replaced by multi-instrumentalist Chris Darrow. By 1968, the band adopted electrical instruments anyway, and added drums. The first electric album, Rare Junk, was a commercial failure, as was their next, Alive. The band continued to gain publicity, mainly as a novelty act, making an appearance in the 1968 film, For Singles Only, and a cameo appearance in the 1969 musical western film, Paint Your Wagon, performing "Hand Me Down That Can o' Beans". The band also played Carnegie Hall as an opening act for Bill Cosby and played in a jam session with Dizzy Gillespie.
Question: DId they experience any other significant changes in the band during this period?
Answer: He was replaced by John McEuen on banjo, fiddle, mandolin, and steel guitar.

Problem: Background: Art Spiegelman (; born Itzhak Avraham ben Zeev on February 15, 1948) is an American cartoonist, editor, and comics advocate best known for his graphic novel Maus. His work as co-editor on the comics magazines Arcade and Raw has been influential, and from 1992 he spent a decade as contributing artist for The New Yorker, where he made several high-profile and sometimes controversial covers. He is married to designer and editor
Context: Hired by Tina Brown as a contributing artist in 1992, Spiegelman worked for The New Yorker for ten years. Spiegelman's first cover appeared on the February 15, 1993, Valentine's Day issue and showed a black West Indian woman and a Hasidic man kissing. The cover caused turmoil at The New Yorker offices. Spiegelman intended it to reference the Crown Heights riot of 1991 in which racial tensions led to the murder of a Jewish yeshiva student. Spiegelman had twenty-one New Yorker covers published, and submitted a number which were rejected for being too outrageous. Within The New Yorker's pages, Spiegelman contributed strips such as a collaboration titled "In the Dumps" with children's illustrator Maurice Sendak and an obituary to Charles M. Schulz titled "Abstract Thought is a Warm Puppy". An essay he had published there on Jack Cole, the creator of Plastic Man, called "Forms Stretched to their Limits" was to form the basis for a book in 2001 about Cole called Jack Cole and Plastic Man: Forms Stretched to their Limits. The same year, Voyager Company published a CD-ROM version of Maus with extensive supplementary material called The Complete Maus, and Spiegelman illustrated a 1923 poem by Joseph Moncure March called The Wild Party. Spiegelman contributed the essay "Getting in Touch With My Inner Racist" in the September 1, 1997 issue of Mother Jones. Spiegelman's influence and connections in New York cartooning circles drew the ire of political cartoonist Ted Rall in 1999. In an article titled "The King of Comix" in The Village Voice, Rall accused Spiegelman of the power to "make or break" a cartoonist's career in New York, while denigrating Spiegelman as "a guy with one great book in him". Cartoonist Danny Hellman responded by sending a forged email under Rall's name to thirty professionals; the prank escalated until Rall launched a defamation suit against Hellman for $1.5 million. Hellman published a "Legal Action Comics" benefit book to cover his legal costs, to which Spiegelman contributed a back-cover cartoon in which he relieves himself on a Rall-shaped urinal. In 1997, Spiegelman had his first children's book published: Open Me... I'm a Dog, with a narrator who tries to convince its readers that it is a dog via pop-ups and an attached leash. From 2000 to 2003 Spiegelman and Mouly edited three issues of the children's comics anthology Little Lit, with contributions from Raw alumni and children's book authors and illustrators.
Question: when did he start working for the new yorker?
Answer:
1992,