Question: Mark Twain provided humorously telling evidence for the frequent unreliability of back-translation when he issued his own back-translation of a French translation of his short story, "The Celebrated Jumping Frog of Calaveras County". He published his back-translation in a 1903 volume together with his English-language original, the French translation, and a "Private History of the 'Jumping Frog' Story". The latter included a synopsized adaptation of his story that Twain stated had appeared, unattributed to Twain, in a Professor Sidgwick's Greek Prose Composition (p. 116) under the title, "The Athenian and the Frog"; the adaptation had for a time been taken for an independent ancient Greek precursor to Twain's "Jumping Frog" story.
Is there an answer to this question: When was Twain's back-translation published?

Answer: 1903

Question: In 1807, Thomas Young was possibly the first to use the term "energy" instead of vis viva, in its modern sense. Gustave-Gaspard Coriolis described "kinetic energy" in 1829 in its modern sense, and in 1853, William Rankine coined the term "potential energy". The law of conservation of energy was also first postulated in the early 19th century, and applies to any isolated system. It was argued for some years whether heat was a physical substance, dubbed the caloric, or merely a physical quantity, such as momentum. In 1845 James Prescott Joule discovered the link between mechanical work and the generation of heat.
Is there an answer to this question: When did Thomas Young use the term "energy" instead of vis viva?

Answer: 1807

Question: On 31 October 1517, Martin Luther supposedly nailed his 95 theses against the selling of indulgences at the door of the All Saints', the Castle Church in Wittenberg. The theses debated and criticised the Church and the papacy, but concentrated upon the selling of indulgences and doctrinal policies about purgatory, particular judgment, and the authority of the pope. He would later write works on the Catholic devotion to Virgin Mary, the intercession of and devotion to the saints, the sacraments, mandatory clerical celibacy, monasticism, further on the authority of the pope, the ecclesiastical law, censure and excommunication, the role of secular rulers in religious matters, the relationship between Christianity and the law, good works, and the sacraments.
Is there an answer to this question: What Catholic devotion would Martin Luther write about after the 95 theses/

Answer: Virgin Mary

Question: Under the Capetian dynasty France slowly began to expand its authority over the nobility, growing out of the Ile-de-France to exert control over more of the country in the 11th and 12th centuries. They faced a powerful rival in the Dukes of Normandy, who in 1066 under William the Conqueror (duke 10351087), conquered England (r. 106687) and created a cross-channel empire that lasted, in various forms, throughout the rest of the Middle Ages. Normans also settled in Sicily and southern Italy, when Robert Guiscard (d. 1085) landed there in 1059 and established a duchy that later became the Kingdom of Sicily. Under the Angevin dynasty of Henry II (r. 115489) and his son Richard I (r. 118999), the kings of England ruled over England and large areas of France,[W] brought to the family by Henry II's marriage to Eleanor of Aquitaine (d. 1204), heiress to much of southern France.[X] Richard's younger brother John (r. 11991216) lost Normandy and the rest of the northern French possessions in 1204 to the French King Philip II Augustus (r. 11801223). This led to dissension among the English nobility, while John's financial exactions to pay for his unsuccessful attempts to regain Normandy led in 1215 to Magna Carta, a charter that confirmed the rights and privileges of free men in England. Under Henry III (r. 121672), John's son, further concessions were made to the nobility, and royal power was diminished. The French monarchy continued to make gains against the nobility during the late 12th and 13th centuries, bringing more territories within the kingdom under their personal rule and centralising the royal administration. Under Louis IX (r. 122670), royal prestige rose to new heights as Louis served as a mediator for most of Europe.[Y]
Is there an answer to this question: During what period did William reign over England?

Answer:
106687