Problem: Background: Cullen was born in Hamilton, Lanarkshire. His father William was a lawyer retained by the Duke of Hamilton as factor, and his mother was Elizabeth Roberton of Whistlebury. He studied at the Old Grammar School of Hamilton (renamed in 1848 The Hamilton Academy), then, in 1726, began a General Studies arts course at the University of Glasgow. He began his medical training as apprentice to John Paisley, a Glasgow apothecary surgeon, then spent 1729 as surgeon on a merchant vessel trading between London and the West Indies.
Context: In 1755 he was enticed by Lord Kames to become Professor of Chemistry and Medicine at the University of Edinburgh. It was in Edinburgh, in 1756, that he gave the first documented public demonstration of artificial refrigeration. Cullen used a pump to create a partial vacuum over a container of diethyl ether, which then boiled, absorbing heat from the surroundings. This created a small amount of ice, but the process found no commercial application.  From 1757 he delivered lectures on clinical medicine in the Edinburgh Royal Infirmary. On the death of Charles Alston in 1760, Cullen at the request of the students undertook to finish his course of lectures on materia medica; he delivered an entirely new course, notes of which were published in an unauthorised edition in 1771, but which he re-wrote and issued as A Treatise on Materia Medica in 1789.  On the death of Robert Whytt, the professor of the institutes of medicine, Cullen accepted the chair, at the same time resigning that of chemistry. In the same year he had been an unsuccessful candidate for the professorship of the practice of physic (medicine), but subsequently an arrangement was made between him and John Gregory, the successful candidate, by which they both agreed to deliver alternate courses on the theory and practice of medicine. This arrangement continued until the sudden death of Gregory in 1773. Cullen was then appointed sole professor of the practice of physic, and he continued in this office until a few months before his death.  In 1783 Cullen (together with his sons) was a co-founder of the Royal Society of Edinburgh.  He died on 5 February 1790 in Kirknewton, West Lothian, and is buried in the churchyard there. His son Robert lies with him.
Question: How many children did he have?
Answer: 

Problem: Background: Deftones is an American alternative metal band from Sacramento, California, U.S. Formed in 1988, the band was founded by Chino Moreno (lead vocals, rhythm guitar), Stephen Carpenter (lead guitar), Abe Cunningham (drums) and Dominic Garcia (bass). During the group's first five years, the band's lineup changed several times, but stabilized in 1993 when Cunningham rejoined the group after his departure in 1990; by this time, Chi Cheng was the band's bassist. The lineup remained stable for fifteen years, with the exception of keyboardist and turntablist Frank Delgado being added in 1999. The band is known as one of the most experimental groups to have come from the alternative metal music scene.
Context: When Stephen Carpenter was 15 years old, he was hit by a car while skateboarding. Confined to a wheelchair for several months, he began teaching himself guitar by playing along to bands such as Anthrax, Stormtroopers of Death and Metallica. The driver supposedly paid Carpenter a cash settlement that allowed the band to purchase equipment, but Abe Cunningham commented in a 2007 interview that the story about the settlement was simply "a myth about how our band was started".  Carpenter, Cunningham and Chino Moreno were friends from their childhood. All three went to McClatchy High School in Sacramento and remained friends through the city's skateboarding scene. While Carpenter was a fan of heavy metal, Moreno was also interested in hardcore punk bands such as Bad Brains and post-punk and new wave bands such as Depeche Mode. When Moreno found out that Carpenter played guitar, he set up a jam session with Cunningham, who played drums, and the three began playing regularly in Carpenter's garage around 1988. They recruited bassist Dominic Garcia some time after, and the band became a four-piece. When Cunningham left Deftones to join Phallucy, another band from Sacramento, Garcia switched to drums. The band acquired Cheng to play bass, and recorded a four-track demo soon afterwards. John Taylor replaced Cunningham on drums in 1991, until Cunningham's return in 1993. Within two years, the band began playing club shows and later expanded their gigging territory to San Francisco and Los Angeles, where they played shows alongside bands such as Korn. While closing for another band in L.A., after the majority of the audience had left, the band impressed a Maverick Records representative. They were signed to the label after performing three of their songs for Freddy DeMann and Guy Oseary.  The name "Deftones" was created by Carpenter, who wanted to pick "something that would just stand out but you know, not be all cheese-ball at the same time." Carpenter combined the hip hop slang term "def," which was used by artists such as LL Cool J and Public Enemy, with the suffix "-tones," which was popular among 1950s bands (e.g., Dick Dale and the Del-Tones, The Quin-Tones, The Delltones, The Monotones, The Cleftones and The Harptones). Carpenter said the name is intentionally vague to reflect the band's tendency to not focus on just one style of music. The name is also a pun on the term "tone deaf."
Question: What happened in 1988?
Answer:
When Stephen Carpenter was 15 years old, he was hit by a car while skateboarding.