Question:
Cudi was born Scott Ramon Seguro Mescudi on January 30, 1984, in Cleveland, Ohio, and grew up in Shaker Heights and Solon. He is the youngest of four children, with two brothers, Domingo and Dean, and a sister, Maisha. His mother, Elsie Harriet (Banks), is a middle-school choir teacher at Roxboro Middle School in Cleveland Heights, Ohio. His father, Lindberg Styles Mescudi, was a house painter, substitute teacher and World War II Air Force veteran.
Kid Cudi's musical style has been described as "an atmospheric take on melodic rap, with a dollop of charming, off-key singing". He has also been called "introspective, with the ability to lay his insecurities on record and expose his fallibility." In 2015, Kris Ex of Billboard, wrote "he's always been an emotional artist, dealing with expansive and nebulous feelings in acute and often destructive ways." Kid Cudi's sound is what inspired and led Kanye West to create his cathartic 808s & Heartbreak (2008), with West later stating that he and Cudi were "the originators of the style, kinda like what Alexander McQueen is to fashion.... Everything else is just Zara and H&M." West also complimented Cudi by saying, "His writing is just so pure and natural and important." In March 2014, Cudi talked about wanting to provide guidance for young listeners with his music: "my mission statement since day one [...] all I wanted to do was help kids not feel alone, and stop committing suicide." In a 2013 article for The BoomBox, the author wrote: "On [A Kid Named Cudi], Cudi raps and croons over samples and interpolations of Gnarls Barkley, Paul Simon, Band of Horses, J Dilla, Nosaj Thing, N.E.R.D. and Outkast. He melded indie rock, electronica and dubstep seamlessly with hip-hop without pandering or reaching. Before Drake broke through with 2009's So Far Gone, rapping and singing over Swedish indie poppers Lykke Li and Peter Bjorn and John, Cudi tweaked with multi-genre covers and seamless transitions between singing and rapping." In a 2009 interview with HipHopDX, when speaking on his debut album Cudi stated: "Well one thing I wanted to do was combine sounds that really bring out intense moods." Kid Cudi's music has also been described as trip hop. Furthermore, he is known for harmonizing and humming in his music, which helps formulate his signature sound. On 2011's WZRD and 2015's Speedin' Bullet 2 Heaven, Cudi incorporated the use of screamed vocals, and can be heard yodeling on his 2016 album Passion, Pain & Demon Slayin'. Throughout the years he has also incorporated elements of psychedelia, R&B, electronica, synthpop and grunge, in his music.
Answer this question using a quote from the text above:

has he worked with other rappers on anything

Answer:
Outkast.

Answer the question at the end by quoting:

James Black was born in Hackensack, New Jersey on 1 May 1800. James' mother died when he was very young and he had difficulty getting along with his stepmother. Black ran away from home to Philadelphia, Pennsylvania at age 8 and was apprenticed to a silversmith. At age 18 he migrated westward and took jobs on the Ohio and Mississippi rivers.
In 1830, Black made the famous Bowie knife for Jim Bowie who was already famous for knife-fighting from his 1827 sandbar duel. Bowie's killing of three assassins in Texas and his death at the Battle of the Alamo made him, and Black's knife, legends. After Bowie's death in 1836, Black did a brisk business selling his knives to pioneers bound for Texas. Everyone seemed to want "Jim Bowie's knife." Black forged his knives behind a leather curtain and kept his process a secret. Black's knives were known to be exceedingly tough yet flexible. Many claimed that Black had rediscovered the process to make Damascus steel. James Black's wife Anne died in 1838; and in 1839, while Black was in bed from an illness, his father-in-law Shaw broke into Black's house and brutally attacked him with a club. Black's life was saved by the family dog; he survived, but his eyes were severely damaged by the attack. He went north to seek medical advice, where his eyes were further damaged by the inept ministrations of a Cincinnati, Ohio, physician. When Black returned to Arkansas he discovered that his father-in-law had sold his business and property, illegally, and disappeared with the cash. Black lived on a local plantation for a couple of years until Dr. Isaac Newton Jones took him into his home. Black lived with the Jones family for the next 30 years. He attempted to pass on his knife-making secrets to Daniel Webster Jones, but unfortunately he could not remember the technique. Jones would later become Governor of Arkansas. James Black died on 22 June 1872 in Washington, Arkansas. More skeptically, "...[T]here is no direct contemporary evidence to establish that James Black made a knife for James Bowie... The story rests solely on Black's claims made well after he had been adjudged mentally incompetent..." "...[T]he only time that [James Bowie] verifiably used a knife in a personal encounter was on the Sandbar in 1827..." "...[T]o this day there is no known knife bearing his name that is proven authentic, nor positively identified as the work of James Black. Neither is it proven beyond doubt that he even made a knife of any type!" Shifting the question (and the burden of proof) from people to knives, "...[T]he Black explanation remains the most logical way to understand this part of the Bowies' history."

Why is this knife famous?
After Bowie's death in 1836, Black did a brisk business selling his knives to pioneers bound for Texas. Everyone seemed to want "Jim Bowie's knife.