Background: Ryan Matthew Dunn (June 11, 1977 - June 20, 2011) was an American stunt performer, television personality, comedian, actor, writer, musician, and one of the stars of the MTV reality stunt show Jackass. Dunn rose to fame in the late 1990s as a member of the CKY Crew with his long-time friend, Bam Margera, for their extreme stunts and pranks recorded on camera, which led to the rise of Jackass. Dunn also hosted Homewrecker and Proving Ground, and appeared in the feature films Blonde Ambition and Street Dreams, as well as in Margera's films Haggard and Minghags. Dunn died in a car crash in 2011, on the 10th anniversary of Jackass.
Context: Dunn took part in the characteristic stunts that made Jackass famous, and featured in all three released films, Jackass: The Movie, Jackass Number Two and Jackass 3D. In 2006, Dunn and Bam Margera participated in the Gumball 3000 road rally in Margera's Lamborghini Gallardo. He later went on a tour with Don Vito called "The Dunn and Vito Rock Tour" for which the DVD was released on March 20, 2007. Dunn and Margera again participated in the rally in 2008. Bam Margera stated during a December 2, 2008, radio interview with Big O and Dukes of 106.7 WJFK-FM, that he and Dunn would be going to Italy to film Where the F*%# Are My Ancestors. That same month, Dunn appeared on the episode "Smut" of Law & Order: Special Victims Unit in December 2008. He is also featured in a movie called Street Dreams which was released in spring 2009. He co-starred along with Rob Dyrdek and Paul Rodriguez Jr. Dunn was also featured on a show with fellow Jackass star Bam Margera about them traveling through Europe in a Viva la Bam-like show called Bam's World Domination for Spike. He appeared in Jackass 3D, which was released on October 15, 2010. Dunn co-hosted G4's Proving Ground along with Jessica Chobot, which made its premiere on June 14, 2011, six days before his death. However, according to a G4 spokesperson, the channel decided to postpone the airing of further episodes. The spokesperson added, "The show is off the schedule as of today until we discuss next steps." On June 27, G4 announced they would air the remaining episodes starting on July 19, 2011. At the time of his death, Dunn was working on the film Welcome to the Bates Motel. The film was later renamed The Bates Haunting and was released in 2013.
Question: How did he rise to fame?
Answer: In 2006, Dunn and Bam Margera participated in the Gumball 3000 road rally in Margera's Lamborghini Gallardo.

Background: Pernell Whitaker (born January 2, 1964) is an American former professional boxer who competed from 1984 to 2001, and has since worked as a boxing trainer. He is a four-weight world champion, having won titles at lightweight, light welterweight, welterweight, and light middleweight; the undisputed lightweight title; and the lineal lightweight and welterweight titles. In 1989, Whitaker was named Fighter of the Year by The Ring magazine and the Boxing Writers Association of America. From 1993 to 1997, The Ring ranked him as the best active boxer in the world, pound for pound.
Context: On February 20, 1999, Whitaker suffered his first convincing defeat against the much bigger, much fresher Felix Trinidad, gamely taking the Puerto Rican the distance in an attempt to win Trinidad's IBF welterweight title. The fight began with both boxers displaying aggressive styles, which included excessive pushing. In the following rounds, both boxers used their jabs most of the time, with Trinidad gaining an advantage when Whitaker attempted to attack inside, eventually scoring a knockdown in round two. In the fourth, fifth and sixth rounds the fighters exchanged combinations. Later in the fight, both boxers fell to the canvas in what were ruled as "accidental slips." On the seventh round, Whitaker displayed more offense, trading power punches with Trinidad, but the champion retained control in the fight's tempo during the eight, ninth and tenth rounds. In the last round, Whitaker, with a badly swollen right eye, displayed a purely defensive stance, avoiding his opponent throughout the round while Trinidad continued on the offensive until the fight concluded. The judges gave the champion scores of 117-111, 118-109 and 118-109. His last fight came on April 27, 2001, against journeyman Carlos Bojorquez. Whitaker, the former lightweight, entered the ring at 155 pounds. He broke his clavicle in round four and was forced to retire; at the time of the stoppage Whitaker was trailing in all the judges' scorecards by 28-29. Following this fight, Whitaker officially announced his retirement. He finished his professional career with an official record of 40-4-1 (17 knockouts). In 2002, The Ring ranked Whitaker as the 10th Greatest Fighter of the Last 80 Years. On December 7, 2006, Whitaker was inducted in the International Boxing Hall of Fame along with contemporaries Roberto Duran and Ricardo Lopez. They were all elected in their first year of eligibility.
Question: What happened in the last round?
Answer: Whitaker, with a badly swollen right eye, displayed a purely defensive stance,

Background: Linus Carl Pauling (; February 28, 1901 - August 19, 1994) was an American chemist, biochemist, peace activist, author, educator, and husband of American human rights activist Ava Helen Pauling. He published more than 1,200 papers and books, of which about 850 dealt with scientific topics. New Scientist called him one of the 20 greatest scientists of all time, and as of 2000, he was rated the 16th most important scientist in history. Pauling was one of the founders of the fields of quantum chemistry and molecular biology.
Context: Pauling's discoveries led to decisive contributions in a diverse array of areas including around 350 publications in the fields of quantum mechanics, inorganic chemistry, organic chemistry, protein structure, molecular biology, and medicine. His work on chemical bonding marks him as one of the founders of modern quantum chemistry. The Nature of the Chemical Bond was the standard work for many years, and concepts like hybridization and electronegativity remain part of standard chemistry textbooks. While his Valence bond approach fell short of accounting quantitatively for some of the characteristics of molecules, such as the color of organometallic complexes, and would later be eclipsed by the molecular orbital theory of Robert Mulliken, Valence Bond Theory still competes, in its modern form, with Molecular Orbital Theory and density functional theory (DFT) as a way of describing the chemical phenomena. Pauling's work on crystal structure contributed significantly to the prediction and elucidation of the structures of complex minerals and compounds. His discovery of the alpha helix and beta sheet is a fundamental foundation for the study of protein structure. Francis Crick acknowledged Pauling as the "father of molecular biology". His discovery of sickle cell anemia as a "molecular disease" opened the way toward examining genetically acquired mutations at a molecular level. Pauling's 1951 publication with Robert B. Corey and H. R. Branson, "The Structure of Proteins: Two Hydrogen-Bonded Helical Configurations of the Polypeptide Chain," was a key early finding in the then newly emerging field of molecular biology. This publication was honored by a Citation for Chemical Breakthrough Award from the Division of History of Chemistry of the American Chemical Society presented to the Department of Chemistry, Caltech, in 2017.
Question: What other important discoveries did he make?
Answer:
His discovery of the alpha helix and beta sheet is a fundamental foundation for the study of protein structure.