Some context: Sayyid Ruhollah Musavi Khomeini (Persian: syd rwHllh mwswy khmyny [ru:hol'la:he khomei'ni:] ( listen); 24 September 1902 - 3 June 1989), known in the Western world as Ayatollah Khomeini, was an Iranian Shia Muslim religious leader and politician. He was the founder of Iran as an Islamic republic and the leader of its 1979 Iranian Revolution that saw the overthrow of 2500 years of Persian monarchy and Mohammad Reza Pahlavi, the last Shah of Iran.
Khomeini was not allowed to return to Iran during the Shah's reign (as he had been in exile). On 17 January 1979, the Shah left the country (ostensibly "on vacation"), never to return. Two weeks later, on Thursday, 1 February 1979, Khomeini returned in triumph to Iran, welcomed by a joyous crowd estimated (by BBC) to be of up to five million people. On his chartered Air France flight back to Tehran 120 journalists accompanied him, including three women. One of the journalists, Peter Jennings, asked: "Ayatollah, would you be so kind as to tell us how you feel about being back in Iran?" Khomeini answered via his aide Sadegh Ghotbzadeh: "Hichi" (Nothing). This statement--much discussed at the time and since--was considered by some reflective of his mystical beliefs and non-attachment to ego. Others considered it a warning to Iranians who hoped he would be a "mainstream nationalist leader" that they were in for disappointment.  To others, it was a reflection of an unfeeling leader incapable or unconcerned with understanding the thoughts, beliefs, or the needs of the Iranian populace.  Khomeini adamantly opposed the provisional government of Shapour Bakhtiar, promising "I shall kick their teeth in. I appoint the government." On 11 February (Bahman 22), Khomeini appointed his own competing interim prime minister, Mehdi Bazargan, demanding, "since I have appointed him, he must be obeyed." It was "God's government," he warned, disobedience against him or Bazargan was considered a "revolt against God."  As Khomeini's movement gained momentum, soldiers began to defect to his side and Khomeini declared ill fortune on troops who did not surrender. On 11 February, as revolt spread and armories were taken over, the military declared neutrality and the Bakhtiar regime collapsed. On 30 and 31 March 1979, a referendum to replace the monarchy with an Islamic Republic passed with 98% voting in favour of the replacement, with the question: "should the monarchy be abolished in favour of an Islamic Government?"
Where did he live before returning to Iran?
A: 
Some context: Dorothy Dandridge was born on November 9, 1922 in Cleveland, Ohio, to aspiring entertainer Ruby Dandridge (nee Butler) (March 3, 1900 - October 17, 1987) and Cyril Dandridge (October 25, 1895 - July 9, 1989), a cabinetmaker and Baptist minister, who had separated just before her birth. Ruby created a song-and-dance act for her two young daughters, Vivian and Dorothy, under the name The Wonder Children, that was managed by Geneva Williams. The sisters toured the Southern United States almost nonstop for five years (rarely attending school), while Ruby worked and performed in Cleveland.
In 1957, Dandridge sued Confidential (magazine) for libel over its article that described a scandalous incident, fictitious as it turned out, that it claimed occurred in 1950. In May 1957, she accepted an out-of-court settlement of $10,000.  Dandridge was one of the few Hollywood stars who testified at the 1957 criminal libel trial of Hollywood Research, Inc., the company that published Confidential as well as all of the other tabloid magazines from that era. Four months after her out-of-court settlement for $10,000, she and actress Maureen O'Hara, the only other star who testified at the criminal trial, were photographed shaking hands outside the downtown-Los Angeles courtroom where the highly publicized trial was held. Testimony from O'Hara, as well as from a disgruntled former magazine editor named Howard Rushmore, revealed that the magazines published false information provided by hotel maids, clerks, and movie-theater ushers who were paid for their tips. The stories with questionable veracity most often centered around alleged incidents of casual sex. When the jury and press visited Grauman's Chinese Theatre to determine whether O'Hara could have performed various sexual acts while seated in the balcony, as reported by a magazine published by Hollywood Research, Inc., this was discovered to have been impossible.  Dandridge had not testified during her civil lawsuit earlier in 1957, but in September she gave testimony in the criminal trial that further strengthened the prosecution's case. Alleged by Confidential to have fornicated with a white bandleader in the woods of Lake Tahoe in 1950, she testified that racial segregation had confined her to her hotel during her nightclub engagement in the Nevada resort city. When she was not in the hotel lounge rehearsing or performing her singing, according to her testimony, she was required to stay inside her room where she slept alone. Dandridge's testimony along with O'Hara's testimony proved beyond any doubt that Hollywood Research had committed libel at least twice. The judge ordered Hollywood Research to stop publishing questionable stories based on tips for which they paid, and this curtailed invasive tabloid journalism until 1971 when Generoso Pope, Jr. moved the National Enquirer, which he owned, from New York to Lantana, Florida.
What fueled it?
A:
the company that published Confidential as well as all of the other tabloid magazines from that era.