In 1933, the mercantile agency founded by which man merged with competitor R.G. Dun & Company?

Which German physicist developed a counter for detecting radioactive particles, later improved with Walther Müller in 1… Radio station WSBT, launched by the South Bend Tribune in 1922, broadcasts from which state? In 1925, General John J. Pershing was sent to help resolve the Tacna-Arica border dispute between Peru and which countr… In 1933, which future "Yankee Clipper" hit safely in 61 straight games for the San Francisco Seals? In 1937, which artist painted a masterpiece depicting the bombing of the Spanish town of Guernica? In 1940, at age 84, who became head of the French government, only to be tried for treason after the war? In 1940's "Santa Fe Trail", co-starring Errol Flynn as Jeb Stuart, Ronald Reagan played which flamboyant cavalry office… In 1949, Bing Crosby played which title New Englander who travels back to a time of knights and ladies?