Which duo wrote "Patience", an 1881 operetta whose heroine is a village milkmaid?

Heinrich Steinweg, later Henry Steinway, began building which instrument in Germany in the 1830s? Who was the Democratic candidate for vice president in 1984? A vicereine is the wife of which official? A vicious teenage gang commits random acts of brutality in which 1962 Anthony Burgess novel? A violent 1902 eruption of which volcano destroyed the city of Saint-Pierre on Martinique? A violent ghost called the Bell Witch allegedly killed John Bell in 1820 in which "Volunteer State"? A violent windstorm in a teapot means a big fuss over nothing. What is the word? Which viral disease name is used both for a canine illness and, in cats, for feline panleukopenia?