Question: Ford was born at the Swedish Covenant Hospital in Chicago, Illinois to Christopher Ford (born John William Ford), an advertising executive and former actor, and Dorothy (nee Nidelman), a former radio actress. His father is Irish and his mother is Jewish. A younger brother, Terence, was born in 1945. Ford's paternal grandparents, John Fitzgerald Ford and Florence Veronica Niehaus, were of Irish Catholic and German descent, respectively.

On October 23, 1999, Harrison Ford was involved in the crash of a Bell 206L4 LongRanger helicopter (N36R). The NTSB accident report states that Ford was piloting the aircraft over the Lake Piru riverbed near Santa Clarita, California, on a routine training flight. While making his second attempt at an autorotation with powered recovery, Ford allowed the aircraft's altitude to drop to 150-200 feet before beginning power-up. The aircraft was unable to recover power before hitting the ground. The aircraft landed hard and began skidding forward in the loose gravel before one of its skids struck a partially embedded log, flipping the aircraft onto its side. Neither Ford nor the instructor pilot suffered any injuries, though the helicopter was seriously damaged. When asked about the incident by fellow pilot James Lipton in an interview on the TV show Inside the Actor's Studio, Ford replied, "I broke it." On March 5, 2015, Ford's plane, believed to be a Ryan PT-22 Recruit, made an emergency landing on the Penmar Golf Course in Venice, California. Ford had radioed in to report that the plane had experienced engine failure. He was taken to Ronald Reagan UCLA Medical Center, where he was reported to be in fair to moderate condition. Ford suffered a broken pelvis and broken ankle during the accident, as well as other injuries. On February 13, 2017, Ford landed an Aviat Husky at John Wayne Airport on the taxiway left of runway 20L. A Boeing 737 was holding short of the runway on the taxiway when Ford overflew them.

Using a quote from the above article, answer the following question: Why did it make an emergency landing
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Answer: the plane had experienced engine failure.

Problem: Hugh Redwald Trevor-Roper, Baron Dacre of Glanton, FBA (15 January 1914 - 26 January 2003), was a British historian of early modern Britain and Nazi Germany. He was Regius Professor of Modern History at the University of Oxford. Trevor-Roper was made a life peer in 1979 on the recommendation of Prime Minister Margaret Thatcher, choosing the title Baron Dacre of Glanton. Trevor-Roper was a polemicist and essayist on a wide range of historical topics, but particularly England in the 16th and 17th centuries and Nazi Germany.

A notable thesis propagated by Trevor-Roper was the "general crisis of the 17th century". He argued that the middle years of the 17th century in Western Europe saw a widespread break-down in politics, economics and society caused by demographic, social, religious, economic and political problems. In this "general crisis," various events, such as the English Civil War, the Fronde in France, the climax of the Thirty Years' War in Germany, troubles in the Netherlands, and revolts against the Spanish Crown in Portugal, Naples and Catalonia, were all manifestations of the same problems. The most important causes of the "general crisis" in Trevor-Roper's opinion were conflicts between "Court" and "Country"; that is between the increasingly powerful centralizing, bureaucratic, sovereign princely states, represented by the Court, and the traditional, regional, land-based aristocracy and gentry, representing the country. In addition, he said that the religious and intellectual changes introduced by the Reformation and the Renaissance were important secondary causes of the "general crisis." The "general crisis" thesis generated controversy between supporters of this theory, and those, such as the Marxist historian Eric Hobsbawm, who agreed with him that there was a "general crisis," but saw the problems of 17th century Europe as more economic in origin than Trevor-Roper would allow. A third faction denied that there was any "general crisis," for example the Dutch historian Ivo Schoffer, the Danish historian Niels Steengsgaard, and the Soviet historian A. D. Lublinskaya. Trevor-Roper's "general crisis" thesis provoked much discussion, and led experts in 17th century history such as Roland Mousnier, J. H. Elliott, Lawrence Stone, E. H. Kossmann, Eric Hobsbawm and J. H. Hexter to become advocates of the pros and cons of the theory. At times the discussion became quite heated; the Italian Marxist historian Rosario Villari, speaking of the work of Trevor-Roper and Mousnier, claimed that: "The hypothesis of imbalance between bureaucratic expansion and the needs of the state is too vague to be plausible, and rests on inflated rhetoric, typical of a certain type of political conservative, rather than on effective analysis." Villari accused Trevor-Roper of downgrading the importance of what Villari called the English Revolution (the usual Marxist term for the English Civil War), and insisted that the "general crisis" was part of a Europe-wide revolutionary movement. Another Marxist critic of Trevor-Roper the Soviet historian A. D. Lublinskaya attacked the concept of a conflict between "Court" and "Country" as fiction, arguing there was no "general crisis;" instead she maintained that the so-called "general crisis" was merely the emergence of capitalism.

What was the cause of the crisis?

Answer with quotes:
religious and intellectual changes introduced by the Reformation and the Renaissance