Blackwell's, a famous bookshop founded in 1879, is in which British university city?

Black Friday, September 24, 1869, resulted from Jay Gould and Jim Fisk's attempt to corner the U.S. supply of what? In the United States, Black History Month is observed during which month? "Black Rain," "Gladiator" and "Black Hawk Down" were all directed by whom? The stock market crash of October 24, 1929, was "Black Thursday"; what is the crash of October 19, 1987, called? Will Ferrell and Jon Heder play rival competitors in which sport in "Blades of Glory"? On which NBC series did Blair Underwood play President Elias Martinez? Blanche of Castile ruled France as regent while her son Louis IX left on what kind of expedition in 1248? A BLAT sandwich is a BLT with which additional ingredient?