The 1980s program of reforms in the USSR under Mikhail Gorbachev included which policy, Russian for "restructuring"?

The 128-carat Tiffany Diamond, a canary-yellow stone, was discovered in the Kimberley Mine of which country? The Black Death of the 14th century was mainly which form of plague, whose name comes from the Greek for "groin"? The 1924 Pulitzer Prize for Drama went to Hatcher Hughes's play with the oxymoronic title "Hell-Bent fer" where? The 1953 Alan Ladd Western "Shane" was filmed in which Wyoming valley, with the Tetons as its backdrop? The 1999 movie "The Haunting" was based on which author's novel "The Haunting of Hill House"? On the 19th of which month in 1865 did Union troops in Galveston announce freedom to enslaved people in Texas? Two "Slaves" that Michelangelo sculpted for Pope Julius II's unfinished tomb are displayed in which Paris museum? The main forts of Muscat, Oman, date from the 1580s, when which European nation occupied the city?