Problem: Background: According to author Edward A. Berlin, "One tenacious myth tells us that Joplin was born in Texarkana, Texas, on November 24, 1868. The location is easily dispensed with: Texarkana was not established until 1873." But, based on a letter discovered by musicologist John Tennison in 2015 in the December 19, 1856 edition of the Times-Picayune, it is clear that Texarkana was established as a place-name at least as early as 1856. Consequently, it appears possible that Joplin, born 12 years later, could have been born in Texarkana.
Context: The combination of classical music, the musical atmosphere present around Texarkana (including work songs, gospel hymns, spirituals and dance music) and Joplin's natural ability have been cited as contributing significantly to the invention of a new style that blended African-American musical styles with European forms and melodies, and first became celebrated in the 1890s: ragtime.  When Joplin was learning the piano, serious musical circles condemned ragtime because of its association with the vulgar and inane songs "...cranked out by the tune-smiths of Tin Pan Alley." As a composer Joplin refined ragtime, elevating it above the low and unrefined form played by the "...wandering honky-tonk pianists... playing mere dance music" of popular imagination. This new art form, the classic rag, combined Afro-American folk music's syncopation and 19th-century European romanticism, with its harmonic schemes and its march-like tempos. In the words of one critic, "Ragtime was basically... an Afro-American version of the polka, or its analog, the Sousa-style march." With this as a foundation, Joplin intended his compositions to be played exactly as he wrote them - without improvisation. Joplin wrote his rags as "classical" music in miniature form in order to raise ragtime above its "cheap bordello" origins and produced work that opera historian Elise Kirk described as, "... more tuneful, contrapuntal, infectious, and harmonically colorful than any others of his era."  Some speculate that Joplin's achievements were influenced by his classically trained German music teacher Julius Weiss, who may have brought a polka rhythmic sensibility from the old country to the 11-year old Joplin. As Curtis put it, "The educated German could open up the door to a world of learning and music of which young Joplin was largely unaware."  Joplin's first and most significant hit, the "Maple Leaf Rag", was described as the archetype of the classic rag, and influenced subsequent rag composers for at least 12 years after its initial publication thanks to its rhythmic patterns, melody lines, and harmony, though with the exception of Joseph Lamb, they generally failed to enlarge upon it.
Question: What music did Joplin rejuvenate?
Answer: invention of a new style that blended African-American musical styles with European forms and melodies, and first became celebrated in the 1890s: ragtime.

Problem: Background: Of Irish descent, Donovan was born in Buffalo, New York, to Anna Letitia "Tish" Donovan (nee Lennon) and Timothy P. Donovan, both American-born children of Irish immigrants. The Lennons were from Ulster, the Donovans from County Cork. Donovan's grandfather Timothy O'Donovan (Sr.) was from the town of Skibbereen; raised by an uncle who was a parish priest, he married Donovan's grandmother Mary Mahoney, who belonged to a propertied family of substantial means that disapproved of him.
Context: While British authorities and the US military and State Department were relatively indifferent to the question of trying war criminals after the war, Donovan was lobbying Roosevelt as early as October 1943 to arrange for such prosecutions. Roosevelt tasked Donovan with looking into the legalities and technicalities, and in the months that followed Donovan collected testimonies about war criminals and related information from a wide range of sources. In addition to seeking justice, Donovan wanted to exact retribution for the torture and killing of OSS agents. When Truman named Supreme Court Justice Robert Jackson to serve as chief U.S. counsel in the prosecution of Nazi war criminals, Jackson, discovering that the OSS was the only agency that had seriously explored the issue, invited Donovan to join his trial staff.  On May 17, 1945, Donovan flew to Europe to prepare for the prosecutions, and eventually brought 172 OSS officers onto Jackson's team, interviewing Auschwitz survivors, tracking down SS and Gestapo documents, and uncovering other evidence. Donovan, whose idea it was to hold the trials in Nuremberg, also introduced Jackson to useful foreign officials and even released OSS funds to bankroll the prosecution effort. Eventually, Jackson, who had been a political rival of Donovan's in New York State, considered him a "godsend"; in return for Donovan's help, but also because the OSS had proven "vital for the prosecution team," Jackson lobbied Truman in person to approve of Donovan's plans for a permanent postwar intelligence agency. The effort, however, was unsuccessful. On September 20, 1945, Truman signed an executive order abolishing the OSS.  In Nuremberg, Donovan interrogated many prisoners, including Hermann Goring, whom he spoke with ten times. But eventually Donovan fell out with Jackson. The latter wanted to indict the entire German High Command, not just men who had personally ordered or committed war crimes; Donovan considered this a violation of American principles of fairness. Donovan, a former prosecutor, also criticized Jackson's lack of skill and experience at putting together a strong case and at courtroom examination and cross-examination. Jackson removed him from the team, and Donovan returned to the U.S., where in January 1946 Truman presented him with the Distinguished Service Medal.
Question: what are the Nuremberg trials?
Answer:
prosecution of Nazi war criminals,