Called Michinomiya as a child, who became emperor of Japan on Christmas Day 1926?

Which youth racing event, nicknamed the "Gravity Grand Prix," began in Dayton, Ohio, before moving to Akron? What are drogues, which open during a space capsule's descent? Who introduced Christianity into Japan in 1549 and is called one of the greatest Catholic missionaries? Hyperopia, the opposite of myopia, is more commonly called what? Called the "mother of Rus cities," which capital was heavily damaged in World War II? Called Sagarmatha in Nepali, which peak is this? Called the ablest of Lee's generals, whose death by friendly fire in 1863 badly hurt the South's chances? Called the "American Sherlock Holmes," William J. Burns solved the 1910 bombing of which California newspaper?