Question: In the Low Middle Ages, Catalan went through a golden age, reaching a peak of maturity and cultural richness. Examples include the work of Majorcan polymath Ramon Llull (12321315), the Four Great Chronicles (13th14th centuries), and the Valencian school of poetry culminating in Ausias March (13971459). By the 15th century, the city of Valencia had become the sociocultural center of the Crown of Aragon, and Catalan was present all over the Mediterranean world. During this period, the Royal Chancery propagated a highly standardized language. Catalan was widely used as an official language in Sicily until the 15th century, and in Sardinia until the 17th. During this period, the language was what Costa Carreras terms "one of the 'great languages' of medieval Europe".
Is there an answer to this question: Where was the center of the Crown of Aragon?

Answer: city of Valencia

Question: After the 1969 coup, representatives of the Four Powers France, the United Kingdom, the United States and the Soviet Union were called to meet RCC representatives. The U.K. and U.S. quickly extended diplomatic recognition, hoping to secure the position of their military bases in Libya and fearing further instability. Hoping to ingratiate themselves with Gaddafi, in 1970 the U.S. informed him of at least one planned counter-coup. Such attempts to form a working relationship with the RCC failed; Gaddafi was determined to reassert national sovereignty and expunge what he described as foreign colonial and imperialist influences. His administration insisted that the U.S. and U.K. remove their military bases from Libya, with Gaddafi proclaiming that "the armed forces which rose to express the people's revolution [will not] tolerate living in their shacks while the bases of imperialism exist in Libyan territory." The British left in March and the Americans in June 1970.
Is there an answer to this question: Along with the U.S., what major power recognized Gaddafi's government at an early date?

Answer: U.K.

Question: Due to the work nature of airline pilots, who often cross several timezones and regions of sunlight and darkness in one day, and spend many hours awake both day and night, they are often unable to maintain sleep patterns that correspond to the natural human circadian rhythm; this situation can easily lead to fatigue. The NTSB cites this as contributing to many accidents[unreliable medical source?] and has conducted several research studies in order to find methods of combating fatigue in pilots.
Is there an answer to this question: What organizations cites this disruption of sleep patterns as a cause of accidents?

Answer: NTSB

Question: A brash boosterism that had typified Melbourne during this time ended in the early 1890s with a severe depression of the city's economy, sending the local finance and property industries into a period of chaos during which 16 small "land banks" and building societies collapsed, and 133 limited companies went into liquidation. The Melbourne financial crisis was a contributing factor in the Australian economic depression of the 1890s and the Australian banking crisis of 1893. The effects of the depression on the city were profound, with virtually no new construction until the late 1890s.
Is there an answer to this question: When did Australia have a banking crisis?

Answer:
1893.