Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

German academics believe they have solved the centuries-old mystery of the "Mona Lisa" in Leonardo ad Vinci's famous portrait . Lisa Gherardini, the wife of a wealthy Florentine merchant, Francesco del Giocondo, has long been seen as the most likely model for the sixteenth-century painting. Art historians have wondered whether the smiling woman may actually have been da Vinci's lover or mother, or the artist himself. Now experts at the prefix = st1 /HeidelbergUniversitylibrary say old notes made in a book by its owner in October, 1503, confirm that Lisa del Giocondo was indeed the model for the famous portrait in the world. "All doubts about the identity of the Mona Lisa have been removed by a discovery by Dr. Armin Schlechter," the library said in a statement on Monday. "Until then, only 'scant evidence' from sixteenth-century documents had been available. These had left lots of room for doubt, and many different identities were put forward." The comments compare Leonardo to the ancient Greek artist Apelles, and say he was working on three paintings at that time, one of which was a portrait of Lisa del Giocondo. Art experts say the Heidelbergdiscovery is a break-through, and the earliest mention linking the merchant's wife to the portrait. Before this discovery the earliest link dated from around 1550, and was made by Italian official Giorgio Vasari, the library said, adding that there had been doubts about Vasari's reliability. The Heidelbergnotes were actually discovered over two year's ago in the library by Schlechter, a spokeswoman said. Although the findings were published in the library's catalogue, they were not widely publicized, and received little attention until a German broadcaster decided to do some recording there, she said.
Who discovered the Heidelbergnotes?

Does everyone want a challenging job? In spite of all the attention focused by the media, academicians, and social scientists on human potential and the needs of individuals, there is no evidence to support that the vast majority of workers want challenging jobs. Some individuals prefer highly complex and challenging jobs; others develop in simple, routine work. The individual-difference variable that seems to gain the greatest support for explaining who prefers a challenging job and who doesn't is the strength of an individual's needs for personal growth and self-direction at work. Individuals with these higher-order growth needs are more responsive for challenging work. What percentage of ordinary workers actually desire higher-order need satisfactions and will respond positively to challenging jobs? No current data is available, but a study from the 1970s estimated the figure at about 15%. Even after adjusting for changing work attitudes and the growth in white-collar jobs, it seems unlikely that the number today exceeds 40%. The strongest voice advocating challenging jobs has not been workers--it's been professors, social science researchers, and media people. Professors, researchers, and journalists undoubtedly made their career choices, to some degree, because they wanted jobs that gave them autonomy, recognition and challenge. That, of course, is their choice. But for them, to force their needs onto the workforce in general is presumptuous . Not every employee is looking for a challenging job. Many workers meet their higher-order need off the job. There are 168 hours in every individual's week. Work rarely consumes more than 30% of this time. That leaves considerable opportunities, even for individuals with strong growth needs, to find higher-order need satisfaction outside the workplace. So don't feel you have a responsibility to create challenging jobs for all your employees. For many people, work is something that will never excite or challenge them. And they don't expect to find their growth opportunities at work. Work is merely something they have to do to pay their bills. They can find challenges outside of work on the golf course, fishing, at their local pub, with their friends in social clubs, with their family, and the like.
What makes people choose challenging jobs?

A "secret" message, unseen for almost 150 years and making the start of the U.S. Civil War (1861-1865), has been uncovered in Abraham Lincoln's gold pocket watch, prefix = st1 /U.S.media reported on Wednesday. "Lincolnnever knew of the message he carried in his pocket," Brent D. Glass, director of the National Museum of American History said in a statement. The message, which was engraved by an Irish immigrant and watchmaker named Jonathan Dillon, is dated April 13, 1861, and reads in part: "FortSumpter[sic] was attacked by the rebels" and "thank God we have a government." "It's a personal side of history about an ordinary watchman being inspired to record something for _ ," Glass said. The museum decided to open the watch after being contacted by the watchmaker's great-great-grandson, Doug Stiles, who had received a letter from a in Ireland. It said that the family had found a letter Dillon had written about the purported message in the watch. Then Stiles, a 57 -year-old real estate lawyer in Waukegan,Illinois, searched on the Internet and found a New York Times article from 1906, where Dillon told the story at the age of 84. During the interview, Dillon said that he unscrewed the dial of the watch and wrote on the metal as soon as he heard the news about the first shot of the Civil War. "The first gun is fired. Slavery is dead. Thank God we have a President who at least will try." However, the actual message that the museum found is different from what Dillon recalled. It reads, "Jonathan Dillon, April 13-1861, Fort Sumpter [sic] was attacked by the rebels on the above date J Dillon, April 13 -1861, Washington, thank God we have a government, Jonth Dillon."

Who wrote the message in Abraham Lincoln's pocket watch?

